# Copyright 2014 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Do not add any imports to non-//build directories here.
# Some projects (e.g. V8) do not have non-build directories DEPS'ed in.
import("//build/config/android/config.gni")
import("//build/config/android/copy_ex.gni")
import("//build/config/clang/clang.gni")
import("//build/config/compiler/compiler.gni")
import("//build/config/coverage/coverage.gni")
import("//build/config/python.gni")
import("//build/config/rts.gni")
import("//build/config/sanitizers/sanitizers.gni")
import("//build/config/zip.gni")
import("//build/toolchain/toolchain.gni")
assert(is_android || is_robolectric)

# Use a dedicated include dir so that files can #include headers from other
# toolchains without affecting non-JNI #includes.
if (target_os == "android") {
  jni_headers_dir = "$root_build_dir/gen/jni_headers"
} else {
  # Chrome OS builds cannot share gen/ directories because is_android=false
  # within default_toolchain.
  jni_headers_dir = "$root_gen_dir/jni_headers"
}

if (target_cpu == "arm") {
  _sanitizer_arch = "arm"
} else if (target_cpu == "arm64") {
  _sanitizer_arch = "aarch64"
} else if (target_cpu == "x86") {
  _sanitizer_arch = "i686"
}

_sanitizer_runtimes = []
if (use_cfi_diag || is_ubsan || is_ubsan_security || is_ubsan_vptr) {
  _sanitizer_runtimes = [ "$clang_base_path/lib/clang/$clang_version/lib/linux/libclang_rt.ubsan_standalone-$_sanitizer_arch-android.so" ]
}

_BUNDLETOOL_JAR_PATH =
    "//third_party/android_build_tools/bundletool/bundletool.jar"

# Creates a dist directory for a native executable.
#
# Running a native executable on a device requires all the shared library
# dependencies of that executable. To make it easier to install and run such an
# executable, this will create a directory containing the native exe and all
# it's library dependencies.
#
# Note: It's usually better to package things as an APK than as a native
# executable.
#
# Variables
#   dist_dir: Directory for the exe and libraries. Everything in this directory
#     will be deleted before copying in the exe and libraries.
#   binary: Path to (stripped) executable.
#   extra_files: List of extra files to copy in (optional).
#
# Example
#   create_native_executable_dist("foo_dist") {
#     dist_dir = "$root_build_dir/foo_dist"
#     binary = "$root_build_dir/foo"
#     deps = [ ":the_thing_that_makes_foo" ]
#   }
template("create_native_executable_dist") {
  forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

  _libraries_list = "${target_gen_dir}/${target_name}_library_dependencies.list"

  _sanitizer_runtimes_target_name = "${target_name}__sanitizer_runtimes"
  group(_sanitizer_runtimes_target_name) {
    metadata = {
      shared_libraries = _sanitizer_runtimes
    }
  }

  generated_file("${target_name}__library_list") {
    forward_variables_from(invoker, [ "deps" ])
    if (!defined(deps)) {
      deps = []
    }
    deps += [ ":${_sanitizer_runtimes_target_name}" ]
    output_conversion = "json"
    outputs = [ _libraries_list ]
    data_keys = [ "shared_libraries" ]
    walk_keys = [ "shared_libraries_barrier" ]
    rebase = root_build_dir
  }

  copy_ex(target_name) {
    inputs = [
      _libraries_list,
      invoker.binary,
    ]

    dest = invoker.dist_dir
    data = [ "${invoker.dist_dir}/" ]

    _rebased_libraries_list = rebase_path(_libraries_list, root_build_dir)
    _rebased_binaries_list = rebase_path([ invoker.binary ], root_build_dir)
    args = [
      "--clear",
      "--files=@FileArg($_rebased_libraries_list)",
      "--files=$_rebased_binaries_list",
    ]
    if (defined(invoker.extra_files)) {
      _rebased_extra_files = rebase_path(invoker.extra_files, root_build_dir)
      args += [ "--files=$_rebased_extra_files" ]
    }

    _depfile = "$target_gen_dir/$target_name.d"
    _stamp_file = "$target_gen_dir/$target_name.stamp"
    outputs = [ _stamp_file ]
    args += [
      "--depfile",
      rebase_path(_depfile, root_build_dir),
      "--stamp",
      rebase_path(_stamp_file, root_build_dir),
    ]

    deps = [ ":${target_name}__library_list" ]
    if (defined(invoker.deps)) {
      deps += invoker.deps
    }
  }
}

if (enable_java_templates) {
  if (is_android) {
    import("//build/config/android/internal_rules.gni")
  }

  # JNI target implementation. See generate_jni or generate_jar_jni for usage.
  template("generate_jni_impl") {
    _prev_jni_output_dir = "$target_gen_dir/$target_name"
    _subdir = rebase_path(target_gen_dir, root_gen_dir)
    _jni_output_dir = "$jni_headers_dir/$_subdir/$target_name"
    if (defined(invoker.jni_generator_include)) {
      _jni_generator_include = invoker.jni_generator_include
      _jni_generator_include_deps = []
    } else {
      _jni_generator_include =
          "//base/android/jni_generator/jni_generator_helper.h"
      _jni_generator_include_deps = [
        # Using //base/android/jni_generator/jni_generator_helper.h introduces
        # a dependency on buildflags targets indirectly through
        # base/android/jni_android.h, which is part of the //base target.
        # This can't depend directly on //base without causing a dependency
        # cycle, though.
        "//base:debugging_buildflags",
        "//base:logging_buildflags",
        "//build:chromeos_buildflags",
      ]
    }

    action_with_pydeps(target_name) {
      # The sources aren't compiled so don't check their dependencies.
      check_includes = false
      script = "//base/android/jni_generator/jni_generator.py"
      forward_variables_from(invoker,
                             TESTONLY_AND_VISIBILITY + [
                                   "deps",
                                   "public_deps",
                                 ])
      if (!defined(public_deps)) {
        public_deps = []
      }
      public_deps += _jni_generator_include_deps

      inputs = []
      args = [
        "--ptr_type=long",

        # TODO(agrieve): --prev_output_dir used only to make incremental builds
        #     work. Remove --prev_output_dir at some point after 2022.
        "--prev_output_dir",
        rebase_path(_prev_jni_output_dir, root_build_dir),
        "--output_dir",
        rebase_path(_jni_output_dir, root_build_dir),
        "--includes",
        rebase_path(_jni_generator_include, _jni_output_dir),
      ]

      if (defined(invoker.classes)) {
        if (is_robolectric) {
          not_needed(invoker, [ "jar_file" ])
        } else {
          if (defined(invoker.jar_file)) {
            _jar_file = invoker.jar_file
          } else {
            _jar_file = android_sdk_jar
          }
          inputs += [ _jar_file ]
          args += [
            "--jar_file",
            rebase_path(_jar_file, root_build_dir),
          ]
        }
        _input_args = invoker.classes
        _input_names = invoker.classes
        if (defined(invoker.always_mangle) && invoker.always_mangle) {
          args += [ "--always_mangle" ]
        }
        if (defined(invoker.unchecked_exceptions) &&
            invoker.unchecked_exceptions) {
          args += [ "--unchecked_exceptions" ]
        }
      } else {
        assert(defined(invoker.sources))
        inputs += invoker.sources
        _input_args = rebase_path(invoker.sources, root_build_dir)
        _input_names = invoker.sources
        if (!is_robolectric && use_hashed_jni_names) {
          args += [ "--use_proxy_hash" ]
        }

        if (!is_robolectric && defined(invoker.enable_jni_multiplexing) &&
            invoker.enable_jni_multiplexing) {
          args += [ "--enable_jni_multiplexing" ]
        }
        if (defined(invoker.namespace)) {
          args += [ "-n ${invoker.namespace}" ]
        }
      }
      if (defined(invoker.split_name)) {
        args += [ "--split_name=${invoker.split_name}" ]
      }

      outputs = []
      foreach(_name, _input_names) {
        _name = get_path_info(_name, "name") + "_jni.h"
        outputs += [ "$_jni_output_dir/$_name" ]

        # Avoid passing GN lists because not all webrtc embedders use //build.
        args += [
          "--output_name",
          _name,
        ]
      }

      foreach(_input, _input_args) {
        args += [ "--input_file=$_input" ]
      }

      if (enable_profiling) {
        args += [ "--enable_profiling" ]
      }
      if (current_toolchain != default_toolchain && target_os == "android") {
        # Rather than regenerating .h files in secondary toolchains, re-use the
        # ones from the primary toolchain by depending on it and adding the
        # root gen directory to the include paths.
        # https://crbug.com/1369398
        inputs = []
        outputs = []
        _stamp = "$target_gen_dir/$target_name.stamp"
        outputs = [ _stamp ]

        # Since we used to generate the .h files rather than delegate, the
        # script will delete all .h files it finds in --prev_output_dir.
        # TODO(agrieve): --prev_output_dir used only to make incremental builds
        #     work. Convert to group() target at some point after 2022.
        args += [
          "--stamp",
          rebase_path(_stamp, root_build_dir),
        ]
        deps = []
        public_deps = []
        public_deps = [ ":$target_name($default_toolchain)" ]
        public_configs =
            [ "//build/config/android:jni_include_dir($default_toolchain)" ]
      } else {
        public_configs = [ "//build/config/android:jni_include_dir" ]
        if (defined(visibility)) {
          # Allow dependency on ourselves from secondary toolchain.
          visibility += [ ":$target_name" ]
        }
      }
    }
  }

  # Declare a jni target
  #
  # This target generates the native jni bindings for a set of .java files.
  #
  # See base/android/jni_generator/jni_generator.py for more info about the
  # format of generating JNI bindings.
  #
  # Variables
  #   sources: list of .java files to generate jni for
  #   namespace: Specify the namespace for the generated header file.
  #   deps, public_deps: As normal
  #
  # Example
  #   # Target located in base/BUILD.gn.
  #   generate_jni("foo_jni") {
  #     # Generates gen/base/foo_jni/Foo_jni.h
  #     # To use: #include "base/foo_jni/Foo_jni.h"
  #     sources = [
  #       "android/java/src/org/chromium/foo/Foo.java",
  #       ...,
  #     ]
  #   }
  template("generate_jni") {
    generate_jni_impl(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
    }
  }

  # Declare a jni target for a prebuilt jar
  #
  # This target generates the native jni bindings for a set of classes in a .jar.
  #
  # See base/android/jni_generator/jni_generator.py for more info about the
  # format of generating JNI bindings.
  #
  # Variables
  #   classes: list of .class files in the jar to generate jni for. These should
  #     include the full path to the .class file.
  #   jar_file: the path to the .jar. If not provided, will default to the sdk's
  #     android.jar
  #   always_mangle: Mangle all generated method names. By default, the script
  #     only mangles methods that cause ambiguity due to method overload.
  #   unchecked_exceptions: Don't CHECK() for exceptions in generated stubs.
  #     This behaves as if every method had @CalledByNativeUnchecked.
  #   deps, public_deps: As normal
  #
  # Example
  #   # Target located in base/BUILD.gn.
  #   generate_jar_jni("foo_jni") {
  #     # Generates gen/base/foo_jni/Runnable_jni.h
  #     # To use: #include "base/foo_jni/Runnable_jni.h"
  #     classes = [
  #       "android/view/Foo.class",
  #     ]
  #   }
  template("generate_jar_jni") {
    generate_jni_impl(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
    }
  }
}  # enable_java_templates

# non-robolectric things
if (enable_java_templates && is_android) {
  # Declare a jni registration target.
  #
  # This target generates a srcjar containing a copy of GEN_JNI.java, which has
  # the native methods of all dependent java files. It can also create a .h file
  # for use with manual JNI registration.
  #
  # The script does not scan any generated sources (those within .srcjars, or
  # within root_build_dir). This could be fixed by adding deps & logic to scan
  # .srcjars, but isn't currently needed.
  #
  # See base/android/jni_generator/jni_registration_generator.py for more info
  # about the format of the header file.
  #
  # Variables
  #   targets: List of .build_config.json supported targets to provide java sources.
  #   manual_jni_registration: Manually do JNI registration - required for feature
  #     splits which provide their own native library. (optional)
  #   file_exclusions: List of .java files that should be skipped. (optional)
  #   namespace: Registration functions will be wrapped into this. (optional)
  #   require_native_mocks: Enforce that any native calls using
  #     org.chromium.base.annotations.NativeMethods must have a mock set
  #     (optional).
  #   enable_native_mocks: Allow native calls using
  #     org.chromium.base.annotations.NativeMethods to be mocked in tests
  #     (optional).
  #   no_transitive_deps: Generate registration for only the Java source in the
  #     specified target(s). This is useful for generating registration for
  #     feature modules, without including base module dependencies.
  #
  # Example
  #   generate_jni_registration("chrome_jni_registration") {
  #     targets = [ ":chrome_public_apk" ]
  #     manual_jni_registration = false
  #     file_exclusions = [
  #       "//path/to/Exception.java",
  #     ]
  #   }
  template("generate_jni_registration") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

      script = "//base/android/jni_generator/jni_registration_generator.py"
      inputs = []
      deps = []
      _srcjar_output = "$target_gen_dir/$target_name.srcjar"
      outputs = [ _srcjar_output ]
      depfile = "$target_gen_dir/$target_name.d"

      args = [
        "--srcjar-path",
        rebase_path(_srcjar_output, root_build_dir),
        "--depfile",
        rebase_path(depfile, root_build_dir),
      ]
      foreach(_target, invoker.targets) {
        deps += [ "${_target}$build_config_target_suffix($default_toolchain)" ]
        _build_config =
            get_label_info("${_target}($default_toolchain)", "target_gen_dir") +
            "/" + get_label_info("${_target}($default_toolchain)", "name") +
            ".build_config.json"
        _rebased_build_config = rebase_path(_build_config, root_build_dir)
        inputs += [ _build_config ]

        if (defined(invoker.no_transitive_deps) && invoker.no_transitive_deps) {
          args += [ "--sources-files=@FileArg($_rebased_build_config:deps_info:target_sources_file)" ]
        } else {
          args += [
            # This is a list of .sources files.
            "--sources-files=@FileArg($_rebased_build_config:deps_info:jni_all_source)",
          ]
        }
      }
      if (defined(invoker.include_testonly)) {
        _include_testonly = invoker.include_testonly
      } else {
        _include_testonly = defined(testonly) && testonly
      }
      if (_include_testonly) {
        args += [ "--include-test-only" ]
      }

      if (use_hashed_jni_names) {
        args += [ "--use-proxy-hash" ]
      }

      if (defined(invoker.enable_native_mocks) && invoker.enable_native_mocks) {
        args += [ "--enable-proxy-mocks" ]

        if (defined(invoker.require_native_mocks) &&
            invoker.require_native_mocks) {
          args += [ "--require-mocks" ]
        }
      }

      _manual_jni_registration = defined(invoker.manual_jni_registration) &&
                                 invoker.manual_jni_registration
      _enable_jni_multiplexing = defined(invoker.enable_jni_multiplexing) &&
                                 invoker.enable_jni_multiplexing
      if (_manual_jni_registration) {
        args += [ "--manual-jni-registration" ]
      }
      if (_enable_jni_multiplexing) {
        args += [ "--enable-jni-multiplexing" ]
      }

      if ((!defined(invoker.prevent_header_output) ||
           !invoker.prevent_header_output) &&
          (_manual_jni_registration || _enable_jni_multiplexing)) {
        assert(current_toolchain == default_toolchain,
               "We do not need >1 toolchain copies of the same header.")

        _subdir = rebase_path(target_gen_dir, root_gen_dir)
        _jni_header_output =
            "$jni_headers_dir/$_subdir/${target_name}_generated.h"
        outputs += [ _jni_header_output ]
        args += [
          "--header-path",
          rebase_path(_jni_header_output, root_build_dir),
        ]

        # This gives targets depending on this registration access to our generated header.
        public_configs = [ "//build/config/android:jni_include_dir" ]
      }

      if (defined(invoker.file_exclusions)) {
        _rebase_file_exclusions =
            rebase_path(invoker.file_exclusions, root_build_dir)
        args += [ "--file-exclusions=$_rebase_file_exclusions" ]
      }

      if (defined(invoker.namespace)) {
        args += [ "--namespace=${invoker.namespace}" ]
      }

      if (defined(invoker.module_name)) {
        args += [ "--module-name=${invoker.module_name}" ]
      }
    }
  }

  # Declare a target for c-preprocessor-generated java files
  #
  # NOTE: For generating Java conterparts to enums prefer using the java_cpp_enum
  #       rule instead.
  #
  # This target generates java files using the host C pre-processor. Each file in
  # sources will be compiled using the C pre-processor. If include_path is
  # specified, it will be passed (with --I) to the pre-processor.
  #
  # This target will create a single .srcjar. Adding this target to an
  # android_library target's srcjar_deps will make the generated java files be
  # included in that library's final outputs.
  #
  # Variables
  #   sources: list of files to be processed by the C pre-processor. For each
  #     file in sources, there will be one .java file in the final .srcjar. For a
  #     file named FooBar.template, a java file will be created with name
  #     FooBar.java.
  #   inputs: additional compile-time dependencies. Any files
  #     `#include`-ed in the templates should be listed here.
  #   defines: List of -D arguments for the preprocessor.
  #
  # Example
  #   java_cpp_template("foo_generated_enum") {
  #     sources = [
  #       "android/java/templates/Foo.template",
  #     ]
  #     inputs = [
  #       "android/java/templates/native_foo_header.h",
  #     ]
  #   }
  template("java_cpp_template") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker,
                             [
                               "data_deps",
                               "deps",
                               "inputs",
                               "public_deps",
                               "sources",
                               "testonly",
                               "visibility",
                             ])
      script = "//build/android/gyp/gcc_preprocess.py"
      outputs = [ "$target_gen_dir/$target_name.srcjar" ]

      _include_dirs = [
        "//",
        root_gen_dir,
      ]
      _rebased_include_dirs = rebase_path(_include_dirs, root_build_dir)
      args = [
        "--include-dirs=$_rebased_include_dirs",
        "--output",
        rebase_path(outputs[0], root_build_dir),
      ]
      if (defined(invoker.defines)) {
        foreach(_define, invoker.defines) {
          args += [
            "--define",
            _define,
          ]
        }
      }
      args += rebase_path(sources, root_build_dir)
    }
  }

  # Declare a target for generating Java classes from C++ enums.
  #
  # This target generates Java files from C++ enums using a script.
  #
  # This target will create a single .srcjar. Adding this target to an
  # android_library target's srcjar_deps will make the generated java files be
  # included in that library's final outputs.
  #
  # Variables
  #   sources: list of files to be processed by the script. For each annotated
  #     enum contained in the sources files the script will generate a .java
  #     file with the same name as the name of the enum.
  #
  # Example
  #   java_cpp_enum("foo_generated_enum") {
  #     sources = [
  #       "src/native_foo_header.h",
  #     ]
  #   }
  template("java_cpp_enum") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY + [ "sources" ])

      # The sources aren't compiled so don't check their dependencies.
      check_includes = false
      script = "//build/android/gyp/java_cpp_enum.py"

      _srcjar_path = "${target_gen_dir}/${target_name}.srcjar"
      _rebased_srcjar_path = rebase_path(_srcjar_path, root_build_dir)
      _rebased_sources = rebase_path(invoker.sources, root_build_dir)

      args = [ "--srcjar=$_rebased_srcjar_path" ] + _rebased_sources
      outputs = [ _srcjar_path ]
    }
  }

  # Declare a target for generating Java classes with string constants matching
  # those found in C++ files using a python script.
  #
  # This target will create a single .srcjar. Adding this target to an
  # android_library target's srcjar_deps will make the generated java files be
  # included in that library's final outputs.
  #
  # Variables
  #   sources: list of files to be processed by the script. For each string
  #            constant in the source files, the script will add a corresponding
  #            Java string to the specified template file.
  # Example
  #   java_cpp_strings("foo_switches") {
  #     sources = [
  #       "src/foo_switches.cc",
  #     ]
  #     template = "src/templates/FooSwitches.java.tmpl
  #   }
  #
  # foo_switches.cc:
  #
  # // A switch.
  # const char kASwitch = "a-switch";
  #
  # FooSwitches.java.tmpl
  #
  # // Copyright {YEAR} The Chromium Authors. All rights reserved.
  # // Use of this source code is governed by a BSD-style license that can be
  # // found in the LICENSE file.
  #
  # // This file is autogenerated by
  # //     {SCRIPT_NAME}
  # // From
  # //     {SOURCE_PATH}, and
  # //     {TEMPLATE_PATH}
  #
  # package my.java.package;
  #
  # public abstract class FooSwitches {{
  #     // ...snip...
  # {NATIVE_STRINGS}
  #     // ...snip...
  # }}
  #
  # result:
  #   A FooSwitches.java file, defining a class named FooSwitches in the package
  #   my.java.package.
  template("java_cpp_strings") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY + [ "sources" ])

      # The sources aren't compiled so don't check their dependencies.
      check_includes = false
      script = "//build/android/gyp/java_cpp_strings.py"

      _srcjar_path = "${target_gen_dir}/${target_name}.srcjar"
      _rebased_srcjar_path = rebase_path(_srcjar_path, root_build_dir)
      _rebased_sources = rebase_path(invoker.sources, root_build_dir)
      _rebased_template = rebase_path(invoker.template, root_build_dir)

      args = [
        "--srcjar=$_rebased_srcjar_path",
        "--template=$_rebased_template",
      ]
      args += _rebased_sources
      sources += [ invoker.template ]

      outputs = [ _srcjar_path ]
    }
  }

  # Declare a target for generating Java classes with string constants matching
  # those found in C++ base::Feature declarations, using a python script.
  #
  # This target will create a single .srcjar. Adding this target to an
  # android_library target's srcjar_deps will make the generated java files be
  # included in that library's final outputs.
  #
  # Variables
  #   sources: list of files to be processed by the script. For each
  #            base::Feature in the source files, the script will add a
  #            corresponding Java string for that feature's name to the
  #            specified template file.
  # Example
  #   java_cpp_features("foo_features") {
  #     sources = [
  #       "src/foo_features.cc",
  #     ]
  #     template = "src/templates/FooFeatures.java.tmpl
  #   }
  #
  # foo_features.cc:
  #
  # // A feature.
  # BASE_FEATURE(kSomeFeature, "SomeFeature",
  #              base::FEATURE_DISABLED_BY_DEFAULT);
  #
  # FooFeatures.java.tmpl
  #
  # // Copyright $YEAR The Chromium Authors. All rights reserved.
  # // Use of this source code is governed by a BSD-style license that can be
  # // found in the LICENSE file.
  #
  # package my.java.package;
  #
  # public final class FooFeatures {{
  #     // ...snip...
  # {NATIVE_STRINGS}
  #     // ...snip...
  #     // Do not instantiate this class.
  #     private FooFeatures() {{}}
  # }}
  #
  # result:
  #   A FooFeatures.java file, defining a class named FooFeatures in the package
  #   my.java.package.
  template("java_cpp_features") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker,
                             TESTONLY_AND_VISIBILITY + [
                                   "deps",
                                   "sources",
                                 ])

      # The sources aren't compiled so don't check their dependencies.
      check_includes = false
      script = "//build/android/gyp/java_cpp_features.py"

      _srcjar_path = "${target_gen_dir}/${target_name}.srcjar"
      _rebased_srcjar_path = rebase_path(_srcjar_path, root_build_dir)
      _rebased_sources = rebase_path(invoker.sources, root_build_dir)
      _rebased_template = rebase_path(invoker.template, root_build_dir)

      args = [
        "--srcjar=$_rebased_srcjar_path",
        "--template=$_rebased_template",
      ]
      args += _rebased_sources
      sources += [ invoker.template ]

      outputs = [ _srcjar_path ]
    }
  }

  # Declare a target for processing a Jinja template.
  #
  # Variables
  #   input: The template file to be processed.
  #   includes: List of files {% include %}'ed by input.
  #   output: Where to save the result.
  #   variables: (Optional) A list of variables to make available to the template
  #     processing environment, e.g. ["name=foo", "color=red"].
  #
  # Example
  #   jinja_template("chrome_public_manifest") {
  #     input = "java/AndroidManifest.xml"
  #     output = "$target_gen_dir/AndroidManifest.xml"
  #   }
  template("jinja_template") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY + [ "deps" ])
      inputs = [ invoker.input ]
      if (defined(invoker.includes)) {
        inputs += invoker.includes
      }
      script = "//build/android/gyp/jinja_template.py"

      outputs = [ invoker.output ]

      args = [
        "--loader-base-dir",
        rebase_path("//", root_build_dir),
        "--inputs",
        rebase_path(invoker.input, root_build_dir),
        "--output",
        rebase_path(invoker.output, root_build_dir),
        "--check-includes",
      ]
      if (defined(invoker.includes)) {
        _rebased_includes = rebase_path(invoker.includes, root_build_dir)
        args += [ "--includes=$_rebased_includes" ]
      }
      if (defined(invoker.variables)) {
        args += [ "--variables=${invoker.variables}" ]
      }
    }
  }

  # Writes native libraries to a NativeLibaries.java file.
  #
  # This target will create a single .srcjar. Adding this target to an
  # android_library target's srcjar_deps will make the generated java files be
  # included in that library's final outputs.
  #
  # Variables:
  #   native_libraries_list_file: (Optional) Path to file listing all native
  #     libraries to write.
  #   version_number: (Optional) String of expected version of 'main' native
  #     library.
  #   enable_chromium_linker: (Optional) Whether to use the Chromium linker.
  #   use_final_fields: True to use final fields. When false, all other
  #       variables must not be set.
  template("write_native_libraries_java") {
    _native_libraries_file = "$target_gen_dir/$target_name.srcjar"
    if (current_cpu == "arm" || current_cpu == "arm64") {
      _cpu_family = "CPU_FAMILY_ARM"
    } else if (current_cpu == "x86" || current_cpu == "x64") {
      _cpu_family = "CPU_FAMILY_X86"
    } else if (current_cpu == "mipsel" || current_cpu == "mips64el") {
      _cpu_family = "CPU_FAMILY_MIPS"
    } else {
      assert(false, "Unsupported CPU family")
    }

    action_with_pydeps(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY + [ "deps" ])
      script = "//build/android/gyp/write_native_libraries_java.py"
      outputs = [ _native_libraries_file ]
      args = [
        "--output",
        rebase_path(_native_libraries_file, root_build_dir),
        "--cpu-family",
        _cpu_family,
      ]
      if (invoker.use_final_fields) {
        # Write native_libraries_list_file via depfile rather than specifyin it
        # as a dep in order allow R8 to run in parallel with native compilation.
        args += [ "--final" ]
        if (defined(invoker.native_libraries_list_file)) {
          depfile = "$target_gen_dir/$target_name.d"
          args += [
            "--native-libraries-list",
            rebase_path(invoker.native_libraries_list_file, root_build_dir),
            "--depfile",
            rebase_path(depfile, root_build_dir),
          ]
        }
        if (defined(invoker.main_component_library)) {
          args += [
            "--main-component-library",
            invoker.main_component_library,
          ]
        }
        if (defined(invoker.enable_chromium_linker) &&
            invoker.enable_chromium_linker) {
          args += [ "--enable-chromium-linker" ]
        }
      }
    }
  }

  # Declare a target for a set of Android resources generated at build
  # time and stored in a single zip archive. The content of the archive
  # should match the layout of a regular Android res/ folder (but the
  # archive should not include a top-level res/ directory).
  #
  # Note that there is no associated .srcjar, R.txt or package name
  # associated with this target.
  #
  # Variables:
  #   generated_resources_zip: Generated zip archive path.
  #   generating_target: Name of the target generating
  #     generated_resources_zip. This rule will check that it is part
  #     of its outputs.
  #   deps: Specifies the dependencies of this target. Any Android resources
  #     listed here will be also be included *after* this one when compiling
  #     all resources for a final apk or junit binary. This is useful to
  #     ensure that the resources of the current target override those of the
  #     dependency as well (and would not work if you have these deps to the
  #     generating target's dependencies).
  #
  # Example
  #   _zip_archive = "$target_gen_dir/${target_name}.resources_zip"
  #
  #   action("my_resources__create_zip") {
  #     _depfile = "$target_gen_dir/${target_name}.d"
  #     script = "//build/path/to/create_my_resources_zip.py"
  #     args = [
  #       "--depfile", rebase_path(_depfile, root_build_dir),
  #       "--output-zip", rebase_path(_zip_archive, root_build_dir),
  #     ]
  #     inputs = []
  #     outputs = _zip_archive
  #     depfile = _depfile
  #   }
  #
  #   android_generated_resources("my_resources") {
  #      generated_resources_zip = _zip_archive
  #      generating_target = ":my_resources__create_zip"
  #   }
  #
  template("android_generated_resources") {
    forward_variables_from(invoker, [ "testonly" ])
    _build_config = "$target_gen_dir/${target_name}.build_config.json"
    _rtxt_out_path = "$target_gen_dir/${target_name}.R.txt"
    write_build_config("$target_name$build_config_target_suffix") {
      forward_variables_from(invoker, [ "resource_overlay" ])

      build_config = _build_config
      resources_zip = invoker.generated_resources_zip
      type = "android_resources"
      if (defined(invoker.deps)) {
        possible_config_deps = invoker.deps
      }
      r_text = _rtxt_out_path
    }
    action_with_pydeps(target_name) {
      forward_variables_from(invoker, [ "visibility" ])
      public_deps = [
        ":$target_name$build_config_target_suffix",
        invoker.generating_target,
      ]
      inputs = [ invoker.generated_resources_zip ]
      outputs = [ _rtxt_out_path ]
      script = "//build/android/gyp/create_r_txt.py"
      args = [
        "--resources-zip-path",
        rebase_path(invoker.generated_resources_zip, root_build_dir),
        "--rtxt-path",
        rebase_path(_rtxt_out_path, root_build_dir),
      ]
    }
  }

  # Declare a target for processing Android resources as Jinja templates.
  #
  # This takes an Android resource directory where each resource is a Jinja
  # template, processes each template, then packages the results in a zip file
  # which can be consumed by an android resources, library, or apk target.
  #
  # If this target is included in the deps of an android resources/library/apk,
  # the resources will be included with that target.
  #
  # Variables
  #   resources: The list of resources files to process.
  #   res_dir: The resource directory containing the resources.
  #   variables: (Optional) A list of variables to make available to the template
  #     processing environment, e.g. ["name=foo", "color=red"].
  #
  # Example
  #   jinja_template_resources("chrome_public_template_resources") {
  #     res_dir = "res_template"
  #     resources = ["res_template/xml/syncable.xml"]
  #     variables = ["color=red"]
  #   }
  template("jinja_template_resources") {
    _resources_zip = "$target_out_dir/${target_name}.resources.zip"
    _generating_target_name = "${target_name}__template"

    action_with_pydeps(_generating_target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY + [ "deps" ])
      inputs = invoker.resources
      script = "//build/android/gyp/jinja_template.py"

      outputs = [ _resources_zip ]

      _rebased_resources = rebase_path(invoker.resources, root_build_dir)
      args = [
        "--inputs=${_rebased_resources}",
        "--inputs-base-dir",
        rebase_path(invoker.res_dir, root_build_dir),
        "--outputs-zip",
        rebase_path(_resources_zip, root_build_dir),
        "--check-includes",
      ]
      if (defined(invoker.variables)) {
        variables = invoker.variables
        args += [ "--variables=${variables}" ]
      }
    }

    android_generated_resources(target_name) {
      forward_variables_from(invoker,
                             TESTONLY_AND_VISIBILITY + [
                                   "deps",
                                   "resource_overlay",
                                 ])
      generating_target = ":$_generating_target_name"
      generated_resources_zip = _resources_zip
    }
  }

  # Declare a prebuilt android native library.
  #
  # This takes a base directory and library name and then looks for the library
  # in <base dir>/$android_app_abi/<library name>.
  #
  # If you depend on this target, the library is stripped and output to the
  # same locations non-prebuilt libraries are output.
  #
  # Variables
  #   base_dir: Directory where all ABIs of the library live.
  #   library_name: Name of the library .so file.
  #
  # Example
  #   android_native_prebuilt("elements_native") {
  #     base_dir = "//third_party/elements"
  #     lib_name = "elements.so"
  #   }
  template("android_native_prebuilt") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker,
                             [
                               "deps",
                               "testonly",
                             ])
      script = "//build/android/gyp/process_native_prebuilt.py"
      _lib_path = "${invoker.base_dir}/$android_app_abi/${invoker.lib_name}"
      _stripped_output_path = "$root_out_dir/${invoker.lib_name}"
      _unstripped_output_path =
          "$root_out_dir/lib.unstripped/${invoker.lib_name}"
      inputs = [ _lib_path ]
      outputs = [
        _stripped_output_path,
        _unstripped_output_path,
      ]

      # Add unstripped output to runtime deps for use by bots during stacktrace
      # symbolization.
      data = [ _unstripped_output_path ]

      _rebased_lib_path = rebase_path(_lib_path, root_build_dir)
      _rebased_stripped_ouput_path =
          rebase_path(_stripped_output_path, root_build_dir)
      _rebased_unstripped_ouput_path =
          rebase_path(_unstripped_output_path, root_build_dir)
      _strip_tool_path =
          rebase_path("//buildtools/third_party/eu-strip/bin/eu-strip",
                      root_build_dir)

      args = [
        "--strip-path=$_strip_tool_path",
        "--input-path=$_rebased_lib_path",
        "--stripped-output-path=$_rebased_stripped_ouput_path",
        "--unstripped-output-path=$_rebased_unstripped_ouput_path",
      ]
    }
  }

  # Declare an Android resources target
  #
  # This creates a resources zip file that will be used when building an Android
  # library or apk and included into a final apk.
  #
  # To include these resources in a library/apk, this target should be listed in
  # the library's deps. A library/apk will also include any resources used by its
  # own dependencies.
  #
  # Variables
  #   sources: List of resource files for this target.
  #   deps: Specifies the dependencies of this target. Any Android resources
  #     listed in deps will be included by libraries/apks that depend on this
  #     target.
  #   alternative_android_sdk_dep: Optional. Alternative Android system
  #     android java target to use.
  #   android_manifest: AndroidManifest.xml for this target (optional). Will be
  #     merged into apks that directly or indirectly depend on this target.
  #   android_manifest_dep: Target that generates AndroidManifest (if applicable)
  #   custom_package: java package for generated .java files.
  #   allow_missing_resources: Do not fail if a resource exists in a directory
  #      but is not listed in sources.
  #   shared_resources: If true make a resource package that can be loaded by a
  #     different application at runtime to access the package's resources.
  #   resource_overlay: Whether the resources in 'sources' should override
  #     resources with the same name. Does not affect the behaviour of any
  #     android_resources() deps of this target. If a target with
  #     resource_overlay=true depends on another target with
  #     resource_overlay=true the target with the dependency overrides the
  #     other.
  #   r_text_file: (optional) path to pre-generated R.txt to be used when
  #     generating R.java instead of resource-based aapt-generated one.
  #   recursive_resource_deps: (optional) whether deps should be walked
  #     recursively to find resource deps.
  #
  # Example:
  #   android_resources("foo_resources") {
  #     deps = [":foo_strings_grd"]
  #     sources = [
  #       "res/drawable/foo1.xml",
  #       "res/drawable/foo2.xml",
  #     ]
  #     custom_package = "org.chromium.foo"
  #   }
  #
  #   android_resources("foo_resources_overrides") {
  #     deps = [":foo_resources"]
  #     sources = [
  #       "res_overrides/drawable/foo1.xml",
  #       "res_overrides/drawable/foo2.xml",
  #     ]
  #   }
  template("android_resources") {
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

    _base_path = "$target_gen_dir/$target_name"
    if (defined(invoker.v14_skip)) {
      not_needed(invoker, [ "v14_skip" ])
    }

    _res_sources_path = "$target_gen_dir/${invoker.target_name}.res.sources"

    _resources_zip = "$target_out_dir/$target_name.resources.zip"
    _r_text_out_path = _base_path + "_R.txt"
    _build_config = _base_path + ".build_config.json"
    _build_config_target_name = "$target_name$build_config_target_suffix"

    _deps = []
    if (defined(invoker.deps)) {
      _deps += invoker.deps
    }

    if (defined(invoker.alternative_android_sdk_dep)) {
      _android_sdk_dep = invoker.alternative_android_sdk_dep
    } else {
      _android_sdk_dep = default_android_sdk_dep
    }

    _resource_files = []
    if (defined(invoker.sources)) {
      _resource_files += invoker.sources
    }

    _rebased_resource_files = rebase_path(_resource_files, root_build_dir)
    write_file(_res_sources_path, _rebased_resource_files)

    # This is necessary so we only lint chromium resources.
    if (defined(invoker.chromium_code)) {
      _chromium_code = invoker.chromium_code
    } else {
      # Default based on whether target is in third_party.
      _chromium_code =
          filter_exclude([ get_label_info(":$target_name", "dir") ],
                         [ "*\bthird_party\b*" ]) != []
    }

    write_build_config(_build_config_target_name) {
      type = "android_resources"
      build_config = _build_config
      resources_zip = _resources_zip
      res_sources_path = _res_sources_path
      chromium_code = _chromium_code

      forward_variables_from(invoker,
                             [
                               "android_manifest",
                               "android_manifest_dep",
                               "custom_package",
                               "mergeable_android_manifests",
                               "resource_overlay",
                               "recursive_resource_deps",
                             ])

      r_text = _r_text_out_path
      possible_config_deps = _deps + [ _android_sdk_dep ]

      # Always merge manifests from resources.
      # * Might want to change this at some point for consistency and clarity,
      #   but keeping for backwards-compatibility.
      if (!defined(mergeable_android_manifests) && defined(android_manifest)) {
        mergeable_android_manifests = [ android_manifest ]
      }
    }

    prepare_resources(target_name) {
      forward_variables_from(invoker,
                             [
                               "allow_missing_resources",
                               "public_deps",
                               "strip_drawables",
                               "visibility",
                             ])
      _lib_deps = filter_exclude(filter_include(_deps, java_library_patterns),
                                 java_resource_patterns)
      if (defined(public_deps)) {
        # Since java library targets depend directly on sub-targets rather than
        # top-level targets, public_deps are not properly propagated, at least
        # in terms of the "did you depend on the target that generates your
        # inputs" GN check.
        assert(filter_include(public_deps, java_target_patterns) == [],
               "Java targets should use deps, not public_deps. " +
                   "target=${target_name}, public_deps=${public_deps}")
      }

      # Depend on non-library deps and on __assetres subtargets of library deps.
      deps = filter_exclude(_deps, _lib_deps) + [ _android_sdk_dep ]
      foreach(_lib_dep, _lib_deps) {
        # Expand //foo/java -> //foo/java:java
        _lib_dep = get_label_info(_lib_dep, "label_no_toolchain")
        deps += [ "${_lib_dep}__assetres" ]
      }

      res_sources_path = _res_sources_path
      sources = _resource_files

      resources_zip = _resources_zip
      r_text_out_path = _r_text_out_path

      if (defined(invoker.r_text_file)) {
        r_text_in_path = invoker.r_text_file
      }
    }
  }

  # Declare an Android assets target.
  #
  # Defines a set of files to include as assets in a dependent apk.
  #
  # To include these assets in an apk, this target should be listed in
  # the apk's deps, or in the deps of a library target used by an apk.
  #
  # Variables
  #   deps: Specifies the dependencies of this target. Any Android assets
  #     listed in deps will be included by libraries/apks that depend on this
  #     target.
  #   sources: List of files to include as assets.
  #   renaming_sources: List of files to include as assets and be renamed.
  #   renaming_destinations: List of asset paths for files in renaming_sources.
  #   disable_compression: Whether to disable compression for files that are
  #     known to be compressable (default: false).
  #   treat_as_locale_paks: Causes base's BuildConfig.java to consider these
  #     assets to be locale paks.
  #
  # Example:
  # android_assets("content_shell_assets") {
  #   deps = [
  #     ":generates_foo",
  #     ":other_assets",
  #     ]
  #   sources = [
  #     "//path/asset1.png",
  #     "//path/asset2.png",
  #     "$target_gen_dir/foo.dat",
  #   ]
  # }
  #
  # android_assets("overriding_content_shell_assets") {
  #   deps = [ ":content_shell_assets" ]
  #   # Override foo.dat from content_shell_assets.
  #   sources = [ "//custom/foo.dat" ]
  #   renaming_sources = [ "//path/asset2.png" ]
  #   renaming_destinations = [ "renamed/asset2.png" ]
  # }
  template("android_assets") {
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

    _build_config = "$target_gen_dir/$target_name.build_config.json"
    _build_config_target_name = "$target_name$build_config_target_suffix"

    _sources = []
    if (defined(invoker.sources)) {
      _sources = invoker.sources
    }
    _renaming_sources = []
    if (defined(invoker.renaming_sources)) {
      _renaming_sources = invoker.renaming_sources
    }
    write_build_config(_build_config_target_name) {
      type = "android_assets"
      build_config = _build_config

      forward_variables_from(invoker,
                             [
                               "disable_compression",
                               "treat_as_locale_paks",
                             ])

      if (defined(invoker.deps)) {
        possible_config_deps = invoker.deps
      }

      if (_sources != []) {
        asset_sources = _sources
      }
      if (_renaming_sources != []) {
        assert(defined(invoker.renaming_destinations))
        _source_count = 0
        foreach(_, _renaming_sources) {
          _source_count += 1
        }
        _dest_count = 0
        foreach(_, invoker.renaming_destinations) {
          _dest_count += 1
        }
        assert(
            _source_count == _dest_count,
            "android_assets() renaming_sources.length != renaming_destinations.length")
        asset_renaming_sources = _renaming_sources
        asset_renaming_destinations = invoker.renaming_destinations
      }
    }

    # Use an action in order to mark sources as "inputs" to a GN target so that
    # GN will fail if the appropriate deps do not exist, and so that "gn refs"
    # will know about the sources. We do not add these inputs & deps to the
    # __build_config target because we want building .build_config.json files
    # to be fast (and because write_build_config.py does not need the files to
    # exist).
    _all_sources = _sources + _renaming_sources
    if (_all_sources != []) {
      action(target_name) {
        forward_variables_from(invoker, [ "deps" ])
        public_deps = [ ":$_build_config_target_name" ]

        script = "//build/android/gyp/validate_inputs.py"
        inputs = _all_sources
        outputs = [ "$target_gen_dir/$target_name.stamp" ]
        args = [
                 "--stamp",
                 rebase_path(outputs[0], root_build_dir),
               ] + rebase_path(_all_sources, root_build_dir)
      }
    } else {
      group(target_name) {
        forward_variables_from(invoker, [ "deps" ])
        public_deps = [ ":$_build_config_target_name" ]
      }
    }
  }

  # Declare a group() that supports forwarding java dependency information.
  #
  # Example
  #  java_group("conditional_deps") {
  #    if (enable_foo) {
  #      deps = [":foo_java"]
  #    }
  #  }
  template("java_group") {
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
    _build_config_vars = [
      "input_jars_paths",
      "preferred_dep",
      "mergeable_android_manifests",
      "proguard_configs",
      "requires_android",
    ]
    _invoker_deps = []
    if (defined(invoker.deps)) {
      _invoker_deps += invoker.deps
    }
    if (defined(invoker.public_deps)) {
      _invoker_deps += invoker.public_deps
    }
    write_build_config("$target_name$build_config_target_suffix") {
      forward_variables_from(invoker, _build_config_vars)
      type = "group"
      build_config = "$target_gen_dir/${invoker.target_name}.build_config.json"
      supports_android = true
      possible_config_deps = _invoker_deps
    }

    _assetres_deps = filter_include(_invoker_deps, java_resource_patterns)
    _invoker_deps_minus_assetres = filter_exclude(_invoker_deps, _assetres_deps)
    _lib_deps =
        filter_include(_invoker_deps_minus_assetres, java_library_patterns)

    _expanded_lib_deps = []
    foreach(_lib_dep, _lib_deps) {
      _expanded_lib_deps += [ get_label_info(_lib_dep, "label_no_toolchain") ]
    }
    foreach(_group_name,
            [
              "assetres",
              "header",
              "host",
              "validate",
            ]) {
      group("${target_name}__$_group_name") {
        deps = []
        foreach(_lib_dep, _expanded_lib_deps) {
          deps += [ "${_lib_dep}__${_group_name}" ]
        }
        if (_group_name == "assetres") {
          deps += _assetres_deps
        }
      }
    }

    group(target_name) {
      forward_variables_from(invoker,
                             "*",
                             _build_config_vars + TESTONLY_AND_VISIBILITY)
      if (!defined(deps)) {
        deps = []
      }
      deps += [ ":$target_name$build_config_target_suffix" ]
    }
  }

  # Declare a Java executable target
  #
  # Same as java_library, but also creates a wrapper script within
  # $root_out_dir/bin.
  #
  # Supports all variables of java_library(), plus:
  #   main_class: When specified, a wrapper script is created within
  #     $root_build_dir/bin to launch the binary with the given class as the
  #     entrypoint.
  #   wrapper_script_name: Filename for the wrapper script (default=target_name)
  #   wrapper_script_args: List of additional arguments for the wrapper script.
  #
  # Example
  #   java_binary("foo") {
  #     sources = [ "org/chromium/foo/FooMain.java" ]
  #     deps = [ ":bar_java" ]
  #     main_class = "org.chromium.foo.FooMain"
  #   }
  #
  #   java_binary("foo") {
  #     jar_path = "lib/prebuilt.jar"
  #     deps = [ ":bar_java" ]
  #     main_class = "org.chromium.foo.FooMain"
  #   }
  template("java_binary") {
    java_library_impl(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
      type = "java_binary"
    }
  }

  # Declare a Java Annotation Processor.
  #
  # Supports all variables of java_library(), plus:
  #   jar_path: Path to a prebuilt jar. Mutually exclusive with sources &
  #     srcjar_deps.
  #   main_class: The fully-quallified class name of the processor's entry
  #       point.
  #
  # Example
  #   java_annotation_processor("foo_processor") {
  #     sources = [ "org/chromium/foo/FooProcessor.java" ]
  #     deps = [ ":bar_java" ]
  #     main_class = "org.chromium.foo.FooProcessor"
  #   }
  #
  #   java_annotation_processor("foo_processor") {
  #     jar_path = "lib/prebuilt.jar"
  #     main_class = "org.chromium.foo.FooMain"
  #   }
  #
  #   java_library("...") {
  #     annotation_processor_deps = [":foo_processor"]
  #   }
  #
  template("java_annotation_processor") {
    java_library_impl(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
      type = "java_annotation_processor"
    }
  }

  # Declare a Robolectric host side test binary.
  #
  # This target creates an executable from java code for running as a
  # Robolectric test suite. The executable will be in the output folder's /bin/
  # directory.
  #
  # Supports all variables of java_binary().
  #
  # Example
  #   robolectric_binary("foo") {
  #     sources = [ "org/chromium/foo/FooTest.java" ]
  #     deps = [ ":bar_java" ]
  #   }
  template("robolectric_binary") {
    testonly = true

    _main_class = "org.chromium.testing.local.JunitTestMain"
    _build_config = "$target_gen_dir/$target_name.build_config.json"
    _build_config_target_name = "$target_name$build_config_target_suffix"
    _java_binary_target_name = "${target_name}__java_binary"

    _invoker_deps = [
      "//testing/android/junit:junit_test_support",
      "//third_party/android_deps:robolectric_all_java",
      "//third_party/junit",
      "//third_party/mockito:mockito_java",
    ]
    if (defined(invoker.deps)) {
      _invoker_deps += invoker.deps
    }
    _non_java_deps = filter_exclude(_invoker_deps, java_target_patterns)
    _java_assetres_deps = [ ":${_java_binary_target_name}__assetres" ]

    if (defined(invoker.alternative_android_sdk_dep)) {
      _android_sdk_dep = invoker.alternative_android_sdk_dep
    } else {
      _android_sdk_dep = default_android_sdk_dep
    }

    # A package name or a manifest is required to have resources. This is
    # added so that junit tests that do not care about the package name can
    # still use resources without having to explicitly set one.
    if (defined(invoker.package_name)) {
      _package_name = invoker.package_name
    } else if (!defined(invoker.android_manifest)) {
      _package_name = "no.manifest.configured"
    }

    _merge_manifest_target_name = "${target_name}__merge_manifests"
    _android_manifest =
        "$target_gen_dir/$target_name.AndroidManifest.merged.xml"

    merge_manifests(_merge_manifest_target_name) {
      if (defined(invoker.android_manifest)) {
        input_manifest = invoker.android_manifest
      } else {
        input_manifest = "//build/android/AndroidManifest.xml"
      }

      if (defined(_package_name)) {
        manifest_package = _package_name
      }
      output_manifest = _android_manifest
      build_config = _build_config
      min_sdk_version = default_min_sdk_version
      target_sdk_version = android_sdk_version
      deps = _non_java_deps + _java_assetres_deps +
             [ ":$_build_config_target_name" ]
      if (defined(invoker.android_manifest_dep)) {
        deps += [ invoker.android_manifest_dep ]
      }
    }

    _resource_arsc_output = "${target_out_dir}/${target_name}.ap_"
    _compile_resources_target_name = "${target_name}__compile_resources"
    compile_resources(_compile_resources_target_name) {
      deps = _non_java_deps + _java_assetres_deps +
             [ ":$_merge_manifest_target_name" ]
      android_sdk_dep = _android_sdk_dep
      build_config_dep = ":$_build_config_target_name"
      build_config = _build_config
      if (defined(_package_name)) {
        rename_manifest_package = _package_name
      }
      android_manifest = _android_manifest
      arsc_output = _resource_arsc_output
      min_sdk_version = default_min_sdk_version
      target_sdk_version = android_sdk_version
    }

    # apkbuilder step needed only to add android assets to the .ap_ file.
    _apkbuilder_output = "${target_out_dir}/${target_name}.robo.ap_"
    _apkbuilder_target_name = "${target_name}__apkbuilder"
    package_apk("$_apkbuilder_target_name") {
      build_config = _build_config
      min_sdk_version = default_min_sdk_version
      deps = _java_assetres_deps + [
               ":$_build_config_target_name",
               ":$_compile_resources_target_name",
             ]

      is_robolectric_apk = true
      packaged_resources_path = _resource_arsc_output
      output_apk_path = _apkbuilder_output
    }

    # Some may want to disable this to remove dependency on //base
    # (JNI generator is in //base).
    _generate_final_jni =
        !defined(invoker.generate_final_jni) || invoker.generate_final_jni
    if (_generate_final_jni) {
      _jni_srcjar_target_name = "${target_name}__final_jni"
      _outer_target_name = target_name
      generate_jni_registration(_jni_srcjar_target_name) {
        enable_native_mocks = true
        require_native_mocks = !defined(invoker.shared_libraries)
        targets = [ ":$_outer_target_name" ]
      }

      if (defined(invoker.shared_libraries)) {
        foreach(_dep, invoker.shared_libraries) {
          assert(
              string_replace(_dep, robolectric_toolchain, "") != _dep,
              "$target_name has shared_libraries with incorrect toolchain. " +
                  "Should contain (\$robolectric_toolchain) suffix: $_dep")
        }

        # Write shared library output files of all dependencies to a file. Those
        # will be the shared libraries packaged into the APK.
        _shared_library_list_file = "$target_gen_dir/$target_name.native_libs"
        generated_file("${target_name}__shared_library_list") {
          deps = invoker.shared_libraries
          outputs = [ _shared_library_list_file ]
          data_keys = [ "shared_libraries" ]
          walk_keys = [ "shared_libraries_barrier" ]
          rebase = root_build_dir
        }
      }
      _native_libraries_target_name = "${target_name}__native_libraries"
      write_native_libraries_java(_native_libraries_target_name) {
        enable_chromium_linker = false
        use_final_fields = true
        if (defined(_shared_library_list_file)) {
          native_libraries_list_file = _shared_library_list_file
        }
      }
    }

    java_library_impl(_java_binary_target_name) {
      forward_variables_from(invoker,
                             "*",
                             TESTONLY_AND_VISIBILITY + [
                                   "deps",
                                   "shared_libraries",
                                 ])
      type = "robolectric_binary"
      main_target_name = invoker.target_name

      deps = _invoker_deps
      testonly = true
      main_class = _main_class
      wrapper_script_name = "helper/$main_target_name"

      # As of April 2021, adding -XX:TieredStopAtLevel=1 does not affect the
      # wall time of a single robolectric shard, but does reduce the CPU time by
      # 66%, which makes sharding more effective.
      tiered_stop_at_level_one = true

      is_robolectric = true
      include_android_sdk = true
      alternative_android_sdk_dep =
          "//third_party/robolectric:robolectric_test_sdk_java"

      if (!defined(srcjar_deps)) {
        srcjar_deps = []
      }
      srcjar_deps += [
        ":$_compile_resources_target_name",
        "//build/android:build_config_for_testing_gen",
      ]
      if (_generate_final_jni) {
        srcjar_deps += [
          ":$_jni_srcjar_target_name",
          ":$_native_libraries_target_name",
        ]
      }
    }

    test_runner_script(target_name) {
      forward_variables_from(invoker,
                             [
                               "assert_no_deps",
                               "visibility",
                             ])
      test_name = invoker.target_name
      test_suite = invoker.target_name
      test_type = "junit"
      ignore_all_data_deps = true
      resource_apk = _apkbuilder_output
      deps = [
        ":$_apkbuilder_target_name",
        ":$_build_config_target_name",
        ":${_java_binary_target_name}__host",
        ":${_java_binary_target_name}__java_binary_script",
        ":${_java_binary_target_name}__validate",
        "//third_party/robolectric:robolectric_runtime_jars",
      ]
      if (defined(invoker.shared_libraries)) {
        data_deps = invoker.shared_libraries
      }

      # Add non-libary deps, since the __host target does not depend on them.
      deps += filter_exclude(_invoker_deps, java_library_patterns)
    }
  }

  # Declare a java library target
  #
  # Variables
  #   deps: Specifies the dependencies of this target. Java targets in this list
  #     will be added to the javac classpath.
  #   public_deps: Dependencies that this target exposes as part of its public API.
  #     public_deps do not need to be listed in both the 'deps' and 'public_deps' lists.
  #   annotation_processor_deps: List of java_annotation_processor targets to
  #     use when compiling.
  #
  #   jar_path: Path to a prebuilt jar. Mutually exclusive with sources &
  #     srcjar_deps.
  #   sources: List of .java files included in this library.
  #   srcjar_deps: List of srcjar dependencies. The .java files in the srcjars
  #     will be added to sources and be included in this library.
  #
  #   input_jars_paths: A list of paths to the jars that should be included
  #     in the compile-time classpath. These are in addition to library .jars
  #     that appear in deps.
  #
  #   chromium_code: If true, extra analysis warning/errors will be enabled.
  #   enable_errorprone: If true, enables the errorprone compiler.
  #   skip_build_server: If true, avoids sending tasks to the build server.
  #
  #   jar_excluded_patterns: List of patterns of .class files to exclude.
  #   jar_included_patterns: List of patterns of .class files to include.
  #     When omitted, all classes not matched by jar_excluded_patterns are
  #     included. When specified, all non-matching .class files are stripped.
  #
  #   low_classpath_priority: Indicates that the library should be placed at the
  #     end of the classpath. The default classpath order has libraries ordered
  #     before the libraries that they depend on. 'low_classpath_priority' is
  #     useful when one java_library() overrides another via
  #     'jar_excluded_patterns' and the overriding library does not depend on
  #     the overridee.
  #
  #   output_name: File name for the output .jar (not including extension).
  #     Defaults to the input .jar file name.
  #
  #   proguard_configs: List of proguard configs to use in final apk step for
  #     any apk that depends on this library.
  #
  #   supports_android: If true, Android targets (android_library, android_apk)
  #     may depend on this target. Note: if true, this target must only use the
  #     subset of Java available on Android.
  #   bypass_platform_checks: Disables checks about cross-platform (Java/Android)
  #     dependencies for this target. This will allow depending on an
  #     android_library target, for example.
  #   enable_desugar: If false, disables desugaring of lambdas, etc. Use this
  #     only when you are sure the library does not require desugaring. E.g.
  #     to hide warnings shown from desugaring.
  #
  #   additional_jar_files: Use to package additional files (Java resources)
  #     into the output jar. Pass a list of length-2 lists with format:
  #         [ [ path_to_file, path_to_put_in_jar ] ]
  #
  #   javac_args: Additional arguments to pass to javac.
  #   errorprone_args: Additional arguments to pass to errorprone.
  #
  #   data_deps, testonly
  #
  # Example
  #   java_library("foo_java") {
  #     sources = [
  #       "org/chromium/foo/Foo.java",
  #       "org/chromium/foo/FooInterface.java",
  #       "org/chromium/foo/FooService.java",
  #     ]
  #     deps = [
  #       ":bar_java"
  #     ]
  #     srcjar_deps = [
  #       ":foo_generated_enum"
  #     ]
  #     jar_excluded_patterns = [
  #       "*/FooService.class", "org/chromium/FooService\$*.class"
  #     ]
  #   }
  template("java_library") {
    java_library_impl(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
      type = "java_library"
    }
  }

  # Declare a java library target for a prebuilt jar
  #
  # Supports all variables of java_library().
  #
  # Example
  #   java_prebuilt("foo_java") {
  #     jar_path = "foo.jar"
  #     deps = [
  #       ":foo_resources",
  #       ":bar_java"
  #     ]
  #   }
  template("java_prebuilt") {
    java_library_impl(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
      type = "java_library"
    }
  }

  # Combines all dependent .jar files into a single .jar file.
  #
  # Variables:
  #   output: Path to the output jar.
  #   use_interface_jars: Use all dependent interface .jars rather than
  #     implementation .jars.
  #   use_unprocessed_jars: Use unprocessed / undesugared .jars.
  #   direct_deps_only: Do not recurse on deps.
  #   jar_excluded_patterns (optional)
  #     List of globs for paths to exclude.
  #
  # Example
  #   dist_jar("lib_fatjar") {
  #     deps = [ ":my_java_lib" ]
  #     output = "$root_build_dir/MyLibrary.jar"
  #   }
  template("dist_jar") {
    # TODO(crbug.com/1042017): Remove.
    not_needed(invoker, [ "no_build_hooks" ])
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
    _use_interface_jars =
        defined(invoker.use_interface_jars) && invoker.use_interface_jars
    _use_unprocessed_jars =
        defined(invoker.use_unprocessed_jars) && invoker.use_unprocessed_jars
    _direct_deps_only =
        defined(invoker.direct_deps_only) && invoker.direct_deps_only
    assert(!(_use_unprocessed_jars && _use_interface_jars),
           "Cannot set both use_interface_jars and use_unprocessed_jars")

    _jar_target_name = target_name

    if (defined(invoker.build_config)) {
      _build_config = invoker.build_config
      _build_config_dep = invoker.build_config_dep
    } else {
      _build_config = "$target_gen_dir/$target_name.build_config.json"
      _build_config_target_name = "$target_name$build_config_target_suffix"
      _build_config_dep = ":$_build_config_target_name"

      write_build_config(_build_config_target_name) {
        type = "dist_jar"
        supports_android =
            !defined(invoker.supports_android) || invoker.supports_android
        requires_android =
            defined(invoker.requires_android) && invoker.requires_android
        possible_config_deps = invoker.deps
        build_config = _build_config
      }
    }

    _rebased_build_config = rebase_path(_build_config, root_build_dir)
    action_with_pydeps(_jar_target_name) {
      forward_variables_from(invoker, [ "data" ])
      script = "//build/android/gyp/zip.py"
      depfile = "$target_gen_dir/$target_name.d"
      deps = [ _build_config_dep ]

      if (_use_interface_jars) {
        _lib_deps =
            filter_exclude(filter_include(invoker.deps, java_library_patterns),
                           java_resource_patterns)
        _other_deps = filter_exclude(invoker.deps, _lib_deps)
        foreach(_lib_dep, _lib_deps) {
          # Expand //foo/java -> //foo/java:java
          _lib_dep = get_label_info(_lib_dep, "label_no_toolchain")
          deps += [ "${_lib_dep}__header" ]
        }
        deps += _other_deps
      } else {
        deps += invoker.deps
      }

      inputs = [ _build_config ]

      outputs = [ invoker.output ]

      args = [
        "--depfile",
        rebase_path(depfile, root_build_dir),
        "--output",
        rebase_path(invoker.output, root_build_dir),
        "--no-compress",
      ]

      if (_direct_deps_only) {
        if (_use_interface_jars) {
          args += [ "--input-zips=@FileArg($_rebased_build_config:javac:interface_classpath)" ]
        } else if (_use_unprocessed_jars) {
          args += [
            "--input-zips=@FileArg($_rebased_build_config:javac:classpath)",
          ]
        } else {
          assert(
              false,
              "direct_deps_only does not work without use_interface_jars or use_unprocessed_jars")
        }
      } else {
        if (_use_interface_jars) {
          args += [ "--input-zips=@FileArg($_rebased_build_config:dist_jar:all_interface_jars)" ]
        } else if (_use_unprocessed_jars) {
          args += [ "--input-zips=@FileArg($_rebased_build_config:deps_info:javac_full_classpath)" ]
        } else {
          args += [ "--input-zips=@FileArg($_rebased_build_config:deps_info:device_classpath)" ]
        }
      }

      _excludes = []
      if (defined(invoker.jar_excluded_patterns)) {
        _excludes += invoker.jar_excluded_patterns
      }
      if (_use_interface_jars) {
        # Turbine adds files like: META-INF/TRANSITIVE/.../Foo.class
        # These confuse proguard: https://crbug.com/1081443
        _excludes += [ "META-INF/*" ]
      } else {
        # Manifest files will never be correct when merging jars.
        _excludes += [ "META-INF/*.MF" ]
      }
      if (_excludes != []) {
        args += [ "--input-zips-excluded-globs=$_excludes" ]
      }
    }
  }

  # Combines all dependent .jar files into a single proguarded .dex file.
  #
  # Variables:
  #   output: Path to the output dex.
  #   proguard_enabled: Whether to enable R8.
  #   proguard_configs: List of proguard configs.
  #   proguard_enable_obfuscation: Whether to enable obfuscation (default=true).
  #   package_name: Used in the Proguard map ID.
  #   version_code: Used in the Proguard map ID.
  #
  # Example
  #   dist_dex("lib_fatjar") {
  #     deps = [ ":my_java_lib" ]
  #     output = "$root_build_dir/MyLibrary.jar"
  #   }
  template("dist_dex") {
    _deps = [ default_android_sdk_dep ]
    if (defined(invoker.deps)) {
      _deps += invoker.deps
    }

    _build_config = "$target_gen_dir/$target_name.build_config.json"
    _build_config_target_name = "$target_name$build_config_target_suffix"

    write_build_config(_build_config_target_name) {
      type = "dist_jar"
      forward_variables_from(invoker,
                             [
                               "proguard_configs",
                               "proguard_enabled",
                             ])
      supports_android = true
      requires_android = true
      possible_config_deps = _deps
      build_config = _build_config
    }

    dex(target_name) {
      forward_variables_from(invoker,
                             TESTONLY_AND_VISIBILITY + [
                                   "data",
                                   "data_deps",
                                   "package_name",
                                   "proguard_configs",
                                   "proguard_enabled",
                                   "proguard_enable_obfuscation",
                                   "min_sdk_version",
                                   "version_code",
                                 ])
      deps = [ ":$_build_config_target_name" ] + _deps
      build_config = _build_config
      enable_multidex = false
      output = invoker.output
      if (defined(proguard_enabled) && proguard_enabled) {
        # The individual dependencies would have caught real missing deps in
        # their respective dex steps. False positives that were suppressed at
        # per-target dex steps are emitted here since this is using jar files
        # rather than dex files.
        ignore_desugar_missing_deps = true
      } else {
        _rebased_build_config = rebase_path(_build_config, root_build_dir)
        input_dex_filearg =
            "@FileArg(${_rebased_build_config}:deps_info:all_dex_files)"
      }
    }
  }

  # Creates an Android .aar library.
  #
  # Currently supports:
  #   * AndroidManifest.xml
  #   * classes.jar
  #   * jni/
  #   * res/
  #   * R.txt
  #   * proguard.txt
  # Does not yet support:
  #   * public.txt
  #   * annotations.zip
  #   * assets/
  # See: https://developer.android.com/studio/projects/android-library.html#aar-contents
  #
  # Variables:
  #   output: Path to the output .aar.
  #   proguard_configs: List of proguard configs (optional).
  #   android_manifest: Path to AndroidManifest.xml (optional).
  #   native_libraries: list of native libraries (optional).
  #   direct_deps_only: Do not recurse on deps (optional, defaults false).
  #   jar_excluded_patterns: List of globs for paths to exclude (optional).
  #   jar_included_patterns: List of globs for paths to include (optional).
  #   generate_final_jni: If defined an true, generate the final
  #     `GEN_JNI.java` and include it in the output `.aar` (optional)
  #
  # Example
  #   dist_aar("my_aar") {
  #     deps = [ ":my_java_lib" ]
  #     output = "$root_build_dir/MyLibrary.aar"
  #   }
  template("dist_aar") {
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

    _direct_deps_only =
        defined(invoker.direct_deps_only) && invoker.direct_deps_only

    _deps = []

    _generate_final_jni =
        defined(invoker.generate_final_jni) && invoker.generate_final_jni
    if (_generate_final_jni) {
      _outer_target_name = target_name
      _jni_srcjar_target = "${target_name}__final_jni"
      generate_jni_registration(_jni_srcjar_target) {
        targets = [ ":$_outer_target_name" ]
      }
      _jni_java_target = "${target_name}__final_jni_java"
      java_library_impl(_jni_java_target) {
        type = "java_library"
        supports_android = true
        requires_android = true
        srcjar_deps = [ ":$_jni_srcjar_target" ]
      }
      _deps += [ ":$_jni_java_target" ]
    }

    if (defined(invoker.deps)) {
      _deps += invoker.deps
    }

    _build_config = "$target_gen_dir/$target_name.build_config.json"
    _build_config_target_name = "$target_name$build_config_target_suffix"

    write_build_config(_build_config_target_name) {
      type = "dist_aar"
      forward_variables_from(invoker, [ "proguard_configs" ])
      possible_config_deps = _deps
      supports_android = true
      requires_android = true
      build_config = _build_config
    }

    _deps += [ ":$_build_config_target_name" ]

    _rebased_build_config = rebase_path(_build_config, root_build_dir)

    action_with_pydeps(target_name) {
      forward_variables_from(invoker,
                             [
                               "data",
                               "assert_no_deps",
                             ])
      depfile = "$target_gen_dir/$target_name.d"
      deps = _deps
      script = "//build/android/gyp/dist_aar.py"

      inputs = [ _build_config ]

      # Although these will be listed as deps in the depfile, they must also
      # appear here so that "gn analyze" knows about them.
      # https://crbug.com/827197
      if (defined(invoker.proguard_configs)) {
        inputs += invoker.proguard_configs
      }

      outputs = [ invoker.output ]

      args = [
        "--depfile",
        rebase_path(depfile, root_build_dir),
        "--output",
        rebase_path(invoker.output, root_build_dir),
        "--dependencies-res-zips=@FileArg($_rebased_build_config:deps_info:dependency_zips)",
        "--r-text-files=@FileArg($_rebased_build_config:deps_info:dependency_r_txt_files)",
        "--proguard-configs=@FileArg($_rebased_build_config:deps_info:proguard_all_configs)",
      ]
      if (_direct_deps_only) {
        args += [ "--jars=@FileArg($_rebased_build_config:javac:classpath)" ]
      } else {
        args += [
          "--jars=@FileArg($_rebased_build_config:deps_info:device_classpath)",
        ]
      }

      if (defined(invoker.android_manifest)) {
        args += [
          "--android-manifest",
          rebase_path(invoker.android_manifest, root_build_dir),
        ]
      }
      if (defined(invoker.native_libraries) && invoker.native_libraries != []) {
        inputs += invoker.native_libraries
        _rebased_native_libraries =
            rebase_path(invoker.native_libraries, root_build_dir)

        args += [
          "--native-libraries=$_rebased_native_libraries",
          "--abi=$android_app_abi",
        ]
      }
      if (defined(invoker.jar_excluded_patterns)) {
        args += [ "--jar-excluded-globs=${invoker.jar_excluded_patterns}" ]
      }
      if (defined(invoker.jar_included_patterns)) {
        args += [ "--jar-included-globs=${invoker.jar_included_patterns}" ]
      }
      if (defined(invoker.resource_included_patterns)) {
        args += [
          "--resource-included-globs=${invoker.resource_included_patterns}",
        ]
      }
    }
  }

  # Declare an Android library target
  #
  # This target creates an Android library containing java code and Android
  # resources.
  #
  # Supports all variables of java_library(), plus:
  #   deps: In addition to defining java deps, this can also include
  #     android_assets() and android_resources() targets.
  #   alternative_android_sdk_dep: android_system_java_prebuilt target to use
  #     in place of the default android.jar.
  #
  # Example
  #   android_library("foo_java") {
  #     sources = [
  #       "android/org/chromium/foo/Foo.java",
  #       "android/org/chromium/foo/FooInterface.java",
  #       "android/org/chromium/foo/FooService.java",
  #     ]
  #     deps = [
  #       ":bar_java"
  #     ]
  #     srcjar_deps = [
  #       ":foo_generated_enum"
  #     ]
  #     jar_excluded_patterns = [
  #       "*/FooService.class", "org/chromium/FooService\$*.class"
  #     ]
  #   }
  template("android_library") {
    java_library(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

      supports_android = true
      requires_android = true

      if (!defined(jar_excluded_patterns)) {
        jar_excluded_patterns = []
      }
      jar_excluded_patterns += [
        "*/R.class",
        "*/R\$*.class",
        "*/Manifest.class",
        "*/Manifest\$*.class",
        "*/*GEN_JNI.class",
      ]
    }
  }

  # Declare an Android robolectric library target
  #
  # This target creates an Android library containing java code and Android
  # resources.
  #
  # Supports all variables of java_library(), plus:
  #   deps: In addition to defining java deps, this can also include
  #     android_assets() and android_resources() targets.
  #
  # Example
  #   robolectric_library("foo_junit") {
  #     sources = [
  #       "android/org/chromium/foo/FooTest.java",
  #       "android/org/chromium/foo/FooTestUtils.java",
  #       "android/org/chromium/foo/FooMock.java",
  #     ]
  #     deps = [
  #       "//base:base_junit_test_support"
  #     ]
  #     srcjar_deps = [
  #       ":foo_generated_enum"
  #     ]
  #     jar_excluded_patterns = [
  #       "*/FooService.class", "org/chromium/FooService\$*.class"
  #     ]
  #   }
  template("robolectric_library") {
    java_library(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

      testonly = true

      is_robolectric = true
      include_android_sdk = true
      alternative_android_sdk_dep =
          "//third_party/robolectric:robolectric_test_sdk_java"

      if (!defined(jar_excluded_patterns)) {
        jar_excluded_patterns = []
      }
      jar_excluded_patterns += [
        "*/R.class",
        "*/R\$*.class",
        "*/Manifest.class",
        "*/Manifest\$*.class",
        "*/*GEN_JNI.class",
      ]

      if (!defined(deps)) {
        deps = []
      }
      deps += [ "//third_party/android_deps:robolectric_all_java" ]
    }
  }

  # Declare an Android library target for a prebuilt jar
  #
  # This target creates an Android library containing java code and Android
  # resources.
  #
  # Supports all variables of android_library().
  #
  # Example
  #   android_java_prebuilt("foo_java") {
  #     jar_path = "foo.jar"
  #     deps = [
  #       ":foo_resources",
  #       ":bar_java"
  #     ]
  #   }
  template("android_java_prebuilt") {
    android_library(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
    }
  }

  template("android_system_java_prebuilt") {
    java_library_impl(target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
      supports_android = true
      type = "system_java_library"
    }
  }

  # Creates org/chromium/build/BuildConfig.java
  # This doesn't really belong in //build since it genates a file for //base.
  # However, we don't currently have a better way to include this file in all
  # apks that depend on //base:base_java.
  #
  # Variables:
  #   use_final_fields: True to use final fields. When false, all other
  #       variables must not be set.
  #   enable_multidex: Value for ENABLE_MULTIDEX.
  #   min_sdk_version: Value for MIN_SDK_VERSION.
  #   bundles_supported: Whether or not this target can be treated as a bundle.
  #   resources_version_variable:
  #   is_incremental_install:
  #   isolated_splits_enabled: Value for ISOLATED_SPLITS_ENABLED.
  template("generate_build_config_srcjar") {
    java_cpp_template(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
      sources = [ "//build/android/java/templates/BuildConfig.template" ]
      defines = []

      # Set these even when !use_final_fields so that they have correct default
      # values within robolectric_binary(), which ignores jar_excluded_patterns.
      if ((defined(invoker.assertions_implicitly_enabled) &&
           invoker.assertions_implicitly_enabled) || enable_java_asserts) {
        defines += [ "_ENABLE_ASSERTS" ]
      }
      if (use_cfi_diag || is_ubsan || is_ubsan_security || is_ubsan_vptr) {
        defines += [ "_IS_UBSAN" ]
      }

      if (is_chrome_branded) {
        defines += [ "_IS_CHROME_BRANDED" ]
      }

      if (defined(invoker.bundles_supported) && invoker.bundles_supported) {
        defines += [ "_BUNDLES_SUPPORTED" ]
      }

      if (defined(invoker.isolated_splits_enabled) &&
          invoker.isolated_splits_enabled) {
        defines += [ "_ISOLATED_SPLITS_ENABLED" ]
      }

      if (defined(invoker.is_incremental_install) &&
          invoker.is_incremental_install) {
        defines += [ "_IS_INCREMENTAL_INSTALL" ]
      }

      if (invoker.use_final_fields) {
        forward_variables_from(invoker, [ "deps" ])
        defines += [ "USE_FINAL" ]
        if (invoker.enable_multidex) {
          defines += [ "ENABLE_MULTIDEX" ]
        }
        if (defined(invoker.min_sdk_version)) {
          defines += [ "_MIN_SDK_VERSION=${invoker.min_sdk_version}" ]
        }
        if (defined(invoker.resources_version_variable)) {
          defines += [
            "_RESOURCES_VERSION_VARIABLE=${invoker.resources_version_variable}",
          ]
        }
      }

      if (defined(testonly) && testonly) {
        defines += [ "_IS_FOR_TEST" ]
      }
    }
  }

  # Creates ProductConfig.java, a file containing product-specific configuration.
  #
  # Currently, this includes the list of locales, both in their compressed and
  # uncompressed format, as well as library loading
  #
  # Variables:
  #   build_config: Path to build_config used for locale lists.
  #   is_bundle_module: Whether or not this target is part of a bundle build.
  #   java_package: Java package for the generated class.
  #   use_chromium_linker:
  template("generate_product_config_srcjar") {
    java_cpp_template(target_name) {
      defines = []
      _use_final =
          defined(invoker.build_config) ||
          defined(invoker.use_chromium_linker) || defined(invoker.is_bundle)
      if (_use_final) {
        defines += [ "USE_FINAL" ]
      }

      sources = [ "//build/android/java/templates/ProductConfig.template" ]
      defines += [ "PACKAGE=${invoker.java_package}" ]

      _use_chromium_linker =
          defined(invoker.use_chromium_linker) && invoker.use_chromium_linker
      _is_bundle = defined(invoker.is_bundle_module) && invoker.is_bundle_module
      defines += [
        "USE_CHROMIUM_LINKER_VALUE=$_use_chromium_linker",
        "IS_BUNDLE_VALUE=$_is_bundle",
      ]
      if (defined(invoker.build_config)) {
        forward_variables_from(invoker, TESTONLY_AND_VISIBILITY + [ "deps" ])
        _rebased_build_config =
            rebase_path(invoker.build_config, root_build_dir)
        defines += [ "LOCALE_LIST=@FileArg($_rebased_build_config:deps_info:locales_java_list)" ]
      }
    }
  }

  # Declare an Android app module target, which is used as the basis for an
  # Android APK or an Android app bundle module.
  #
  # Supports all variables of android_library(), plus:
  #   android_manifest: Path to AndroidManifest.xml. NOTE: This manifest must
  #     not contain a <uses-sdk> element. Use [min|target|max]_sdk_version
  #     instead.
  #   android_manifest_dep: Target that generates AndroidManifest (if applicable)
  #   png_to_webp: If true, pngs (with the exception of 9-patch) are
  #     converted to webp during resource packaging.
  #   loadable_modules: List of paths to native libraries to include. Different
  #     from |shared_libraries| in that:
  #       * dependencies of this .so are not automatically included
  #       * ".cr.so" is never added
  #       * they are not side-loaded when incremental_install=true.
  #       * use_chromium_linker, and enable_relocation_packing do not apply
  #     Use this instead of shared_libraries when you are going to load the library
  #     conditionally, and only when shared_libraries doesn't work for you.
  #   secondary_abi_loadable_modules: This is the loadable_modules analog to
  #     secondary_abi_shared_libraries.
  #   shared_libraries: List shared_library targets to bundle. If these
  #     libraries depend on other shared_library targets, those dependencies will
  #     also be included in the apk (e.g. for is_component_build).
  #   secondary_abi_shared_libraries: secondary abi shared_library targets to
  #     bundle. If these libraries depend on other shared_library targets, those
  #     dependencies will also be included in the apk (e.g. for is_component_build).
  #   native_lib_placeholders: List of placeholder filenames to add to the apk
  #     (optional).
  #   secondary_native_lib_placeholders: List of placeholder filenames to add to
  #     the apk for the secondary ABI (optional).
  #   generate_buildconfig_java: If defined and false, skip generating the
  #     BuildConfig java class describing the build configuration. The default
  #     is true when building with Chromium for non-test APKs.
  #   generate_final_jni: If defined and false, skip generating the
  #     GEN_JNI srcjar.
  #   generate_native_libraries_java: If defined, whether NativeLibraries.java is
  #     generated is solely controlled by this flag. Otherwise, the default behavior
  #     is NativeLibraries.java will only be generated for the base module/apk when
  #     its `shared_libraries` is not empty.
  #   jni_file_exclusions: List of source path to exclude from the
  #     final_jni step.
  #   aapt_locale_allowlist: If set, all locales not in this list will be
  #     stripped from resources.arsc.
  #   resource_exclusion_regex: Causes all drawable images matching the regex to
  #     be excluded (mipmaps are still included).
  #   resource_exclusion_exceptions: A list of globs used when
  #     resource_exclusion_regex is set. Files that match this list will
  #     still be included.
  #   resource_values_filter_rules: List of "source_path:name_regex" used to
  #     filter out unwanted values/ resources.
  #   shared_resources: True if this is a runtime shared library APK, like
  #     the system_webview_apk target. Ensures that its resources can be
  #     used by the loading application process.
  #   app_as_shared_lib: True if this is a regular application apk that can
  #     also serve as a runtime shared library, like the monochrome_public_apk
  #     target. Ensures that the resources are usable both by the APK running
  #     as an application, or by another process that loads it at runtime.
  #   shared_resources_allowlist_target: Optional name of a target specifying
  #     an input R.txt file that lists the resources that can be exported
  #     by the APK when shared_resources or app_as_shared_lib is defined.
  #   uncompress_dex: Store final .dex files uncompressed in the apk.
  #   omit_dex: If true, do not build or include classes.dex.
  #   strip_resource_names: True if resource names should be stripped from the
  #     resources.arsc file in the apk or module.
  #   strip_unused_resources: True if unused resources should be stripped from
  #     the apk or module.
  #   short_resource_paths: True if resource paths should be shortened in the
  #     apk or module.
  #   resources_config_paths: List of paths to the aapt2 optimize config files
  #     that tags resources with acceptable/non-acceptable optimizations.
  #   expected_android_manifest: Enables verification of expected merged
  #     manifest based on a golden file.
  #   resource_ids_provider_dep: If passed, this target will use the resource
  #     IDs generated by {resource_ids_provider_dep}__compile_res during
  #     resource compilation.
  #   enforce_resource_overlays_in_tests: Enables check for testonly targets that
  #     dependent resource targets which override another target set
  #     overlay_resources=true. This check is on for non-test targets and
  #     cannot be disabled.
  #   static_library_provider: Specifies a single target that this target will
  #     use as a static library APK.
  #   min_sdk_version: The minimum Android SDK version this target supports.
  #     Optional, default $default_min_sdk_version.
  #   target_sdk_version: The target Android SDK version for this target.
  #     Optional, default to android_sdk_version.
  #   max_sdk_version: The maximum Android SDK version this target supports.
  #     Optional, default not set.
  #   require_native_mocks: Enforce that any native calls using
  #     org.chromium.base.annotations.NativeMethods must have a mock set
  #     (optional).
  #   enable_native_mocks: Allow native calls using
  #     org.chromium.base.annotations.NativeMethods to be mocked in tests
  #     (optional).
  #   product_config_java_packages: Optional list of java packages. If given, a
  #     ProductConfig.java file will be generated for each package.
  #   enable_proguard_checks: Turns on -checkdiscard directives and missing
  #     symbols check in the proguard step (default=true).
  #   annotation_processor_deps: List of java_annotation_processor targets to
  #     use when compiling the sources given to this target (optional).
  #   processor_args_javac: List of args to pass to annotation processors when
  #     compiling sources given to this target (optional).
  #   bundles_supported: Enable Java code to treat this target as a bundle
  #     whether (by default determined by the target type).
  #   main_component_library: Specifies the name of the base component's library
  #     in a component build. If given, the system will find dependent native
  #     libraries at runtime by inspecting this library (optional).
  #   expected_libs_and_assets: Verify the list of included native libraries
  #     and assets is consistent with the given expectation file.
  #   expected_libs_and_assets_base: Treat expected_libs_and_assets as a diff
  #     with this file as the base.
  #   expected_proguard_config: Checks that the merged set of proguard flags
  #     matches the given config.
  #   expected_proguard_config_base: Treat expected_proguard_config as a diff
  #     with this file as the base.
  template("android_apk_or_module") {
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
    _template_name = target_name
    _base_path = "$target_out_dir/$target_name/$target_name"
    _build_config = "$target_gen_dir/$target_name.build_config.json"
    _build_config_target = "$target_name$build_config_target_suffix"
    _java_target_name = "${_template_name}__java"

    _min_sdk_version = default_min_sdk_version
    _target_sdk_version = android_sdk_version
    if (defined(invoker.min_sdk_version)) {
      _min_sdk_version = invoker.min_sdk_version
    }
    if (defined(invoker.target_sdk_version)) {
      _target_sdk_version = invoker.target_sdk_version
    }

    _is_bundle_module =
        defined(invoker.is_bundle_module) && invoker.is_bundle_module
    if (_is_bundle_module) {
      _is_base_module =
          defined(invoker.is_base_module) && invoker.is_base_module
    }

    _omit_dex = defined(invoker.omit_dex) && invoker.omit_dex
    _enable_multidex =
        !defined(invoker.enable_multidex) || invoker.enable_multidex

    if (!_is_bundle_module) {
      _final_apk_path = invoker.final_apk_path
      _final_rtxt_path = "${_final_apk_path}.R.txt"
    }

    _res_size_info_path = "$target_out_dir/$target_name.ap_.info"
    if (!_is_bundle_module) {
      _final_apk_path_no_ext_list =
          process_file_template([ _final_apk_path ],
                                "{{source_dir}}/{{source_name_part}}")
      _final_apk_path_no_ext = _final_apk_path_no_ext_list[0]
      not_needed([ "_final_apk_path_no_ext" ])
    }

    # Non-base bundle modules create only proto resources.
    if (!_is_bundle_module || _is_base_module) {
      _arsc_resources_path = "$target_out_dir/$target_name.ap_"
    }
    if (_is_bundle_module) {
      # Path to the intermediate proto-format resources zip file.
      _proto_resources_path = "$target_out_dir/$target_name.proto.ap_"
    } else {
      # resource_sizes.py needs to be able to find the unpacked resources.arsc
      # file based on apk name to compute normatlized size.
      _resource_sizes_arsc_path =
          "$root_out_dir/arsc/" +
          rebase_path(_final_apk_path_no_ext, root_build_dir) + ".ap_"
    }

    if (defined(invoker.version_code)) {
      _version_code = invoker.version_code
    } else {
      _version_code = android_default_version_code
    }

    if (android_override_version_code != "") {
      _version_code = android_override_version_code
    }

    if (defined(invoker.version_name)) {
      _version_name = invoker.version_name
    } else {
      _version_name = android_default_version_name
    }

    if (android_override_version_name != "") {
      _version_name = android_override_version_name
    }

    if (defined(invoker.deps)) {
      _invoker_deps = invoker.deps
    } else {
      _invoker_deps = []
    }
    _non_java_deps = filter_exclude(_invoker_deps, java_target_patterns)
    _java_assetres_deps = [ ":${_java_target_name}__assetres" ]

    _srcjar_deps = []
    if (defined(invoker.srcjar_deps)) {
      _srcjar_deps = invoker.srcjar_deps
    }

    _use_chromium_linker =
        defined(invoker.use_chromium_linker) && invoker.use_chromium_linker

    not_needed([ "_use_chromium_linker" ])

    # The dependency that makes the chromium linker, if any is needed.
    _native_libs_deps = []
    _shared_libraries_is_valid =
        defined(invoker.shared_libraries) && invoker.shared_libraries != []

    if (_shared_libraries_is_valid) {
      _native_libs_deps += invoker.shared_libraries

      # Write shared library output files of all dependencies to a file. Those
      # will be the shared libraries packaged into the APK.
      _shared_library_list_file =
          "$target_gen_dir/${_template_name}.native_libs"
      generated_file("${_template_name}__shared_library_list") {
        deps = _native_libs_deps
        outputs = [ _shared_library_list_file ]
        data_keys = [ "shared_libraries" ]
        walk_keys = [ "shared_libraries_barrier" ]
        rebase = root_build_dir
      }
    } else {
      # Must exist for instrumentation_test_apk() to depend on.
      group("${_template_name}__shared_library_list") {
      }
    }

    _secondary_abi_native_libs_deps = []

    if (defined(invoker.secondary_abi_shared_libraries) &&
        invoker.secondary_abi_shared_libraries != []) {
      _secondary_abi_native_libs_deps = invoker.secondary_abi_shared_libraries

      # Write shared library output files of all dependencies to a file. Those
      # will be the shared libraries packaged into the APK.
      _secondary_abi_shared_library_list_file =
          "$target_gen_dir/${_template_name}.secondary_abi_native_libs"
      generated_file("${_template_name}__secondary_abi_shared_library_list") {
        deps = _secondary_abi_native_libs_deps
        outputs = [ _secondary_abi_shared_library_list_file ]
        data_keys = [ "shared_libraries" ]
        walk_keys = [ "shared_libraries_barrier" ]
        rebase = root_build_dir
      }
    } else {
      # Must exist for instrumentation_test_apk() to depend on.
      group("${_template_name}__secondary_abi_shared_library_list") {
      }
    }

    _rebased_build_config = rebase_path(_build_config, root_build_dir)
    assert(_rebased_build_config != "")  # Mark as used.

    _generate_buildconfig_java = !defined(invoker.apk_under_test) && !_omit_dex
    if (defined(invoker.generate_buildconfig_java)) {
      _generate_buildconfig_java = invoker.generate_buildconfig_java
    }

    _generate_productconfig_java =
        defined(invoker.product_config_java_packages) && !_omit_dex

    # JNI generation usually goes hand-in-hand with buildconfig generation.
    _generate_final_jni = _generate_buildconfig_java
    if (defined(invoker.generate_final_jni)) {
      _generate_final_jni = invoker.generate_final_jni
    }

    _proguard_enabled =
        defined(invoker.proguard_enabled) && invoker.proguard_enabled

    if (!_is_bundle_module && _proguard_enabled) {
      _proguard_mapping_path = "$_final_apk_path.mapping"
    }

    if (defined(invoker.resource_ids_provider_dep)) {
      _resource_ids_provider_dep = invoker.resource_ids_provider_dep
    }

    if (defined(invoker.shared_resources_allowlist_target)) {
      _shared_resources_allowlist_target =
          invoker.shared_resources_allowlist_target
    }

    _uses_static_library = defined(invoker.static_library_provider)

    # TODO(crbug.com/864142): Allow incremental installs of bundle modules.
    _incremental_apk = !_is_bundle_module &&
                       !(defined(invoker.never_incremental) &&
                         invoker.never_incremental) && incremental_install
    if (_incremental_apk) {
      _target_dir_name = get_label_info(target_name, "dir")
      _incremental_install_json_path = "$root_out_dir/gen.runtime/$_target_dir_name/$target_name.incremental.json"
      _incremental_apk_path = "${_final_apk_path_no_ext}_incremental.apk"
    }

    if (!_incremental_apk && !_omit_dex) {
      # Bundle modules don't build the dex here, but need to write this path
      # to their .build_config.json file only when proguarding.
      if (_proguard_enabled) {
        _final_dex_path = "$_base_path.r8dex.jar"
      } else if (!_is_bundle_module) {
        _final_dex_path = "$_base_path.mergeddex.jar"
      }
    }

    _android_manifest =
        "$target_gen_dir/${_template_name}/AndroidManifest.merged.xml"
    _merge_manifest_target = "${_template_name}__merge_manifests"
    merge_manifests(_merge_manifest_target) {
      forward_variables_from(invoker,
                             [
                               "manifest_package",
                               "max_sdk_version",
                             ])
      input_manifest = invoker.android_manifest
      output_manifest = _android_manifest
      build_config = _build_config
      min_sdk_version = _min_sdk_version
      target_sdk_version = _target_sdk_version

      # Depend on android_resources() targets that use generated files
      # in mergeable_android_manifests (such as android_aar_prebuilt).
      deps = _java_assetres_deps + [ ":$_build_config_target" ]
      if (defined(invoker.android_manifest_dep)) {
        deps += [ invoker.android_manifest_dep ]
      }
    }

    _final_deps = [ ":$_java_target_name" ]

    _enable_main_dex_list = _enable_multidex && _min_sdk_version < 21
    if (_enable_main_dex_list) {
      _generated_proguard_main_dex_config =
          "$_base_path.resources.main-dex-proguard.txt"
    }
    _generated_proguard_config = "$_base_path.resources.proguard.txt"

    if (defined(invoker.alternative_android_sdk_dep)) {
      _android_sdk_dep = invoker.alternative_android_sdk_dep
    } else {
      _android_sdk_dep = default_android_sdk_dep
    }

    if (defined(_shared_resources_allowlist_target)) {
      _allowlist_gen_dir =
          get_label_info(_shared_resources_allowlist_target, "target_gen_dir")
      _allowlist_target_name =
          get_label_info(_shared_resources_allowlist_target, "name")
      _allowlist_r_txt_path =
          "${_allowlist_gen_dir}/${_allowlist_target_name}" +
          "__compile_resources_R.txt"
      _allowlist_deps =
          "${_shared_resources_allowlist_target}__compile_resources"
    }

    if (_incremental_apk) {
      _incremental_android_manifest =
          "$target_gen_dir/${_template_name}/AndroidManifest.incremental.xml"
      _incremental_manifest_target_name = "${target_name}__incremental_manifest"
      action_with_pydeps(_incremental_manifest_target_name) {
        deps = [ ":$_merge_manifest_target" ]
        script =
            "//build/android/incremental_install/generate_android_manifest.py"
        inputs = [ _android_manifest ]
        outputs = [ _incremental_android_manifest ]

        args = [
          "--disable-isolated-processes",
          "--src-manifest",
          rebase_path(_android_manifest, root_build_dir),
          "--dst-manifest",
          rebase_path(_incremental_android_manifest, root_build_dir),
        ]
      }
    }

    _compile_resources_target = "${_template_name}__compile_resources"
    _compile_resources_rtxt_out =
        "${target_gen_dir}/${_compile_resources_target}_R.txt"
    _compile_resources_emit_ids_out =
        "${target_gen_dir}/${_compile_resources_target}.resource_ids"
    compile_resources(_compile_resources_target) {
      forward_variables_from(
          invoker,
          [
            "aapt_locale_allowlist",
            "app_as_shared_lib",
            "enforce_resource_overlays_in_tests",
            "expected_android_manifest",
            "expected_android_manifest_base",
            "expected_android_manifest_library_version_offset",
            "expected_android_manifest_version_code_offset",
            "manifest_package",
            "max_sdk_version",
            "package_id",
            "png_to_webp",
            "r_java_root_package_name",
            "resource_exclusion_exceptions",
            "resource_exclusion_regex",
            "resource_values_filter_rules",
            "shared_resources",
            "shared_resources_allowlist_locales",
            "uses_split",
          ])
      android_manifest = _android_manifest
      android_manifest_dep = ":$_merge_manifest_target"
      version_code = _version_code
      version_name = _version_name
      min_sdk_version = _min_sdk_version
      target_sdk_version = _target_sdk_version

      if (defined(expected_android_manifest)) {
        top_target_name = _template_name
      }

      if (defined(_resource_ids_provider_dep)) {
        resource_ids_provider_dep = _resource_ids_provider_dep
      }

      if (defined(invoker.module_name)) {
        package_name = invoker.module_name
      }

      if (defined(invoker.post_process_package_resources_script)) {
        post_process_script = invoker.post_process_package_resources_script
      }
      r_text_out_path = _compile_resources_rtxt_out
      emit_ids_out_path = _compile_resources_emit_ids_out
      size_info_path = _res_size_info_path
      proguard_file = _generated_proguard_config
      if (_enable_main_dex_list) {
        proguard_file_main_dex = _generated_proguard_main_dex_config
      }

      build_config = _build_config
      build_config_dep = ":$_build_config_target"
      android_sdk_dep = _android_sdk_dep
      deps = _java_assetres_deps + _non_java_deps

      if (_incremental_apk) {
        android_manifest = _incremental_android_manifest
        android_manifest_dep = ":$_incremental_manifest_target_name"
      }

      if (defined(invoker.apk_under_test)) {
        # Set the arsc package name to match the apk_under_test package name
        # So that test resources can references under_test resources via
        # @type/name syntax.
        r_java_root_package_name = "test"
        arsc_package_name =
            "@FileArg($_rebased_build_config:deps_info:arsc_package_name)"

        # Passing in the --emit-ids mapping will cause aapt2 to assign resources
        # IDs that do not conflict with those from apk_under_test.
        assert(!defined(resource_ids_provider_dep))
        resource_ids_provider_dep = invoker.apk_under_test

        _link_against = invoker.apk_under_test
      }

      if (_is_bundle_module) {
        is_bundle_module = true
        proto_output = _proto_resources_path

        if (defined(invoker.base_module_target)) {
          _link_against = invoker.base_module_target
        }
      }

      if (defined(_link_against)) {
        deps += [ "${_link_against}__compile_resources" ]
        include_resource = get_label_info(_link_against, "target_out_dir") +
                           "/" + get_label_info(_link_against, "name") + ".ap_"
      }

      # Bundle modules have to reference resources from the base module.
      if (!_is_bundle_module || _is_base_module) {
        arsc_output = _arsc_resources_path
      }

      if (defined(_shared_resources_allowlist_target)) {
        # Used to ensure that the WebView resources are properly shared
        # (i.e. are non-final and with package ID 0).
        shared_resources_allowlist = _allowlist_r_txt_path
        deps += [ _allowlist_deps ]
      }
    }
    _srcjar_deps += [ ":$_compile_resources_target" ]

    # We don't ship apks anymore, only optimize bundle builds
    if (_is_bundle_module) {
      _short_resource_paths =
          defined(invoker.short_resource_paths) &&
          invoker.short_resource_paths && enable_arsc_obfuscation
      _strip_resource_names =
          defined(invoker.strip_resource_names) &&
          invoker.strip_resource_names && enable_arsc_obfuscation
      _strip_unused_resources =
          defined(invoker.strip_unused_resources) &&
          invoker.strip_unused_resources && enable_unused_resource_stripping
      _optimize_resources = _strip_resource_names || _short_resource_paths ||
                            _strip_unused_resources
    }

    if (_is_bundle_module && _optimize_resources) {
      _optimized_proto_resources_path =
          "$target_out_dir/$target_name.optimized.proto.ap_"
      if (_short_resource_paths) {
        _resources_path_map_out_path =
            "${target_gen_dir}/${_template_name}_resources_path_map.txt"
      }
      _optimize_resources_target = "${_template_name}__optimize_resources"
      optimize_resources(_optimize_resources_target) {
        deps = _non_java_deps + [ ":$_compile_resources_target" ]
        short_resource_paths = _short_resource_paths
        strip_resource_names = _strip_resource_names
        if (_short_resource_paths) {
          resources_path_map_out_path = _resources_path_map_out_path
        }
        r_text_path = _compile_resources_rtxt_out
        proto_input_path = _proto_resources_path
        optimized_proto_output = _optimized_proto_resources_path
        if (_strip_unused_resources) {
          # These need to be kept in sync with the target names + output paths
          # in the android_app_bundle template.
          _unused_resources_target = "${_template_name}__unused_resources"
          _unused_resources_config_path =
              "$target_gen_dir/${_template_name}_unused_resources.config"
          resources_config_paths = [ _unused_resources_config_path ]
          deps += [ ":$_unused_resources_target" ]
        } else {
          resources_config_paths = []
        }
        if (defined(invoker.resources_config_paths)) {
          resources_config_paths += invoker.resources_config_paths
        }
      }

      if (_strip_unused_resources) {
        # Copy the unused resources config to the final bundle output dir.
        _copy_unused_resources_target =
            "${_template_name}__copy_unused_resources"
        _final_deps += [ ":$_copy_unused_resources_target" ]
      }
    } else {
      not_needed(invoker, [ "resources_config_paths" ])
    }

    if (!_is_bundle_module) {
      # Output the R.txt file to a more easily discoverable location for
      # archiving. This is necessary when stripping resource names so that we
      # have an archive of resource names to ids for shipped apks (for
      # debugging purposes). We copy the file rather than change the location
      # of the original because other targets rely on the location of the R.txt
      # file.
      _copy_rtxt_target = "${_template_name}__copy_rtxt"
      copy(_copy_rtxt_target) {
        deps = [ ":$_compile_resources_target" ]
        sources = [ _compile_resources_rtxt_out ]
        outputs = [ _final_rtxt_path ]
      }
      _final_deps += [ ":$_copy_rtxt_target" ]
    }

    if (defined(_resource_sizes_arsc_path)) {
      _copy_arsc_target = "${_template_name}__copy_arsc"
      copy(_copy_arsc_target) {
        deps = [ ":$_compile_resources_target" ]

        # resource_sizes.py doesn't care if it gets the optimized .arsc.
        sources = [ _arsc_resources_path ]
        outputs = [ _resource_sizes_arsc_path ]
      }
      _final_deps += [ ":$_copy_arsc_target" ]
    }

    if (defined(invoker.generate_native_libraries_java)) {
      _generate_native_libraries_java = invoker.generate_native_libraries_java
    } else {
      _generate_native_libraries_java =
          (!_is_bundle_module || _is_base_module) && !_omit_dex &&
          !defined(invoker.apk_under_test)
    }
    if (_generate_native_libraries_java) {
      write_native_libraries_java("${_template_name}__native_libraries") {
        forward_variables_from(invoker, [ "main_component_library" ])

        # Do not add a dep on the generated_file target in order to avoid having
        # to build the native libraries before this target. The dependency is
        # instead captured via a depfile.
        if (_uses_static_library) {
          _prefix = get_label_info(invoker.static_library_provider,
                                   "target_gen_dir") + "/" +
                    get_label_info(invoker.static_library_provider, "name")
          if (defined(invoker.static_library_provider_use_secondary_abi) &&
              invoker.static_library_provider_use_secondary_abi) {
            native_libraries_list_file = "${_prefix}.secondary_abi_native_libs"
          } else {
            native_libraries_list_file = "${_prefix}.native_libs"
          }
        } else if (_native_libs_deps != []) {
          native_libraries_list_file = _shared_library_list_file
        } else if (_secondary_abi_native_libs_deps != []) {
          native_libraries_list_file = _secondary_abi_shared_library_list_file
        }
        enable_chromium_linker = _use_chromium_linker
        use_final_fields = true
      }
      _srcjar_deps += [ ":${_template_name}__native_libraries" ]
    }

    _loadable_modules = []
    if (defined(invoker.loadable_modules)) {
      _loadable_modules = invoker.loadable_modules
    }

    if (_native_libs_deps != []) {
      _loadable_modules += _sanitizer_runtimes
    }

    _assertions_implicitly_enabled = defined(invoker.custom_assertion_handler)

    # Many possible paths where we wouldn't use this variable.
    not_needed([ "_assertions_implicitly_enabled" ])

    if (_generate_buildconfig_java) {
      generate_build_config_srcjar("${_template_name}__build_config_srcjar") {
        forward_variables_from(invoker,
                               [
                                 "min_sdk_version",
                                 "isolated_splits_enabled",
                               ])
        _bundles_supported = _is_bundle_module
        if (defined(invoker.bundles_supported)) {
          _bundles_supported = invoker.bundles_supported
        }
        bundles_supported = _bundles_supported
        use_final_fields = true
        assertions_implicitly_enabled = _assertions_implicitly_enabled
        enable_multidex = _enable_multidex
        is_incremental_install = _incremental_apk
        if (defined(invoker.build_config_include_product_version_resource) &&
            invoker.build_config_include_product_version_resource) {
          resources_version_variable =
              "org.chromium.base.R.string.product_version"
        }
        deps = [ ":$_build_config_target" ]
      }
      _srcjar_deps += [ ":${_template_name}__build_config_srcjar" ]
    }

    if (_generate_productconfig_java) {
      foreach(_package, invoker.product_config_java_packages) {
        _locale_target_name =
            "${_template_name}_${_package}__product_config_srcjar"
        generate_product_config_srcjar("$_locale_target_name") {
          forward_variables_from(invoker, [ "is_bundle_module" ])
          build_config = _build_config
          java_package = _package
          use_chromium_linker = _use_chromium_linker
          deps = [ ":$_build_config_target" ]
        }
        _srcjar_deps += [ ":$_locale_target_name" ]
      }
    }

    if (_generate_final_jni) {
      generate_jni_registration("${_template_name}__final_jni") {
        forward_variables_from(invoker,
                               [
                                 "enable_jni_multiplexing",
                                 "enable_native_mocks",
                                 "require_native_mocks",
                               ])
        if (defined(invoker.bundle_target)) {
          targets = [ invoker.bundle_target ]
        } else {
          targets = [ ":$_template_name" ]
        }
        if (defined(invoker.jni_file_exclusions)) {
          file_exclusions = invoker.jni_file_exclusions
        }
        prevent_header_output = true
      }
      _srcjar_deps += [ ":${_template_name}__final_jni" ]
    } else {
      not_needed(invoker, [ "enable_native_mocks" ])
    }

    if (_is_bundle_module) {
      _add_view_trace_events =
          defined(invoker.add_view_trace_events) &&
          invoker.add_view_trace_events && enable_trace_event_bytecode_rewriting
    }

    # We cannot skip this target when omit_dex = true because it writes the
    # build_config.json.
    java_library_impl(_java_target_name) {
      forward_variables_from(invoker,
                             [
                               "alternative_android_sdk_dep",
                               "android_manifest",
                               "android_manifest_dep",
                               "annotation_processor_deps",
                               "apk_under_test",
                               "base_module_target",
                               "chromium_code",
                               "deps",
                               "jacoco_never_instrument",
                               "jar_excluded_patterns",
                               "javac_args",
                               "mergeable_android_manifests",
                               "native_lib_placeholders",
                               "parent_module_target",
                               "processor_args_javac",
                               "secondary_abi_loadable_modules",
                               "secondary_native_lib_placeholders",
                               "sources",
                               "library_always_compress",
                             ])
      version_code = _version_code
      version_name = _version_name
      if (_is_bundle_module) {
        type = "android_app_bundle_module"
        res_size_info_path = _res_size_info_path
        if (defined(invoker.module_name)) {
          module_name = invoker.module_name
        } else {
          module_name = "base"
        }
        add_view_trace_events = _add_view_trace_events
      } else {
        type = "android_apk"
      }
      r_text_path = _compile_resources_rtxt_out
      main_target_name = _template_name
      supports_android = true
      requires_android = true
      srcjar_deps = _srcjar_deps
      merged_android_manifest = _android_manifest
      if (defined(_final_dex_path)) {
        final_dex_path = _final_dex_path
      }

      if (_is_bundle_module) {
        proto_resources_path = _proto_resources_path
        if (_optimize_resources) {
          proto_resources_path = _optimized_proto_resources_path
          if (_short_resource_paths) {
            module_pathmap_path = _resources_path_map_out_path
          }
        }
      } else {
        apk_path = _final_apk_path
        if (_incremental_apk) {
          incremental_apk_path = _incremental_apk_path
          incremental_install_json_path = _incremental_install_json_path
        }
      }

      proguard_enabled = _proguard_enabled
      if (_proguard_enabled) {
        proguard_configs = [ _generated_proguard_config ]
        if (defined(invoker.proguard_configs)) {
          proguard_configs += invoker.proguard_configs
        }
        if (!_assertions_implicitly_enabled && !enable_java_asserts &&
            (!defined(testonly) || !testonly) &&
            # Injected JaCoCo code causes -checkdiscards to fail.
            !use_jacoco_coverage) {
          proguard_configs += [ "//build/android/dcheck_is_off.flags" ]
        }
        if (!_is_bundle_module) {
          proguard_mapping_path = _proguard_mapping_path
        }
      }

      # Do not add a dep on the generated_file target in order to avoid having
      # to build the native libraries before this target. The dependency is
      # instead captured via a depfile.
      if (_native_libs_deps != []) {
        shared_libraries_runtime_deps_file = _shared_library_list_file
      }
      if (defined(_secondary_abi_shared_library_list_file)) {
        secondary_abi_shared_libraries_runtime_deps_file =
            _secondary_abi_shared_library_list_file
      }

      loadable_modules = _loadable_modules

      if (defined(_allowlist_r_txt_path) && _is_bundle_module) {
        # Used to write the file path to the target's .build_config.json only.
        base_allowlist_rtxt_path = _allowlist_r_txt_path
      }
    }

    if (_is_bundle_module || _omit_dex) {
      # Dex generation for app bundle modules take place in the
      # android_app_bundle template.
      not_needed(invoker, [ "custom_assertion_handler" ])
    } else if (_incremental_apk) {
      not_needed(invoker,
                 [
                   "enable_proguard_checks",
                   "custom_assertion_handler",
                 ])
    } else {
      _final_dex_target_name = "${_template_name}__final_dex"
      dex(_final_dex_target_name) {
        forward_variables_from(invoker,
                               [
                                 "enable_proguard_checks",
                                 "custom_assertion_handler",
                                 "proguard_enable_obfuscation",
                               ])
        min_sdk_version = _min_sdk_version
        proguard_enabled = _proguard_enabled
        build_config = _build_config
        output = _final_dex_path
        enable_multidex = _enable_multidex
        deps = [
          ":$_build_config_target",
          ":$_java_target_name",
        ]
        if (_proguard_enabled) {
          # Generates proguard configs
          deps += [ ":$_compile_resources_target" ]
          proguard_mapping_path = _proguard_mapping_path
          has_apk_under_test = defined(invoker.apk_under_test)
        } else {
          if (_min_sdk_version >= default_min_sdk_version) {
            # Enable dex merging only when min_sdk_version is >= what the library
            # .dex files were created with.
            input_dex_filearg =
                "@FileArg(${_rebased_build_config}:deps_info:all_dex_files)"

            # Pure dex-merge.
            enable_desugar = false
          } else {
            input_classes_filearg =
                "@FileArg($_rebased_build_config:deps_info:device_classpath)"
          }
        }

        # The individual dependencies would have caught real missing deps in
        # their respective dex steps. False positives that were suppressed at
        # per-target dex steps are emitted here since this may use jar files
        # rather than dex files.
        if (!defined(enable_desugar)) {
          ignore_desugar_missing_deps = true
        }

        if (_enable_main_dex_list) {
          # Generates main-dex config.
          deps += [ ":$_compile_resources_target" ]
          extra_main_dex_proguard_config = _generated_proguard_main_dex_config
        }
      }

      _final_dex_target_dep = ":$_final_dex_target_name"

      _use_baseline_profile =
          _proguard_enabled && defined(invoker.baseline_profile_path) &&
          enable_baseline_profiles
      if (_use_baseline_profile) {
        _binary_profile_target = "${_template_name}__binary_baseline_profile"
        _binary_baseline_profile_path =
            "$target_out_dir/$_template_name.baseline.prof"
        _binary_baseline_profile_metadata_path =
            _binary_baseline_profile_path + "m"
        create_binary_profile(_binary_profile_target) {
          forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
          binary_baseline_profile_path = _binary_baseline_profile_path
          binary_baseline_profile_metadata_path =
              _binary_baseline_profile_metadata_path
          proguard_mapping_path = _proguard_mapping_path
          build_config = _build_config
          input_profile_path = invoker.baseline_profile_path
          deps = [
            ":$_build_config_target",
            _final_dex_target_dep,
          ]
        }
      }
    }

    if (!defined(_use_baseline_profile) || !_use_baseline_profile) {
      not_needed(invoker, [ "baseline_profile_path" ])
    }

    _all_native_libs_deps = _native_libs_deps + _secondary_abi_native_libs_deps
    if (_all_native_libs_deps != []) {
      _native_libs_filearg_dep = ":$_build_config_target"
      _all_native_libs_deps += [ _native_libs_filearg_dep ]

      if (!_is_bundle_module) {
        _native_libs_filearg =
            "@FileArg($_rebased_build_config:native:libraries)"
      }
    }

    if (_is_bundle_module) {
      _final_deps += [
                       ":$_build_config_target",
                       ":$_compile_resources_target",
                       ":$_merge_manifest_target",
                     ] + _all_native_libs_deps
      if (_optimize_resources) {
        _final_deps += [ ":$_optimize_resources_target" ]
      }
      if (defined(_final_dex_target_dep)) {
        not_needed([ "_final_dex_target_dep" ])
      }
    } else {
      # Generate size-info/*.jar.info files.
      if (defined(invoker.name)) {
        # Create size info files for targets that care about size
        # (have proguard enabled).
        _include_size_info =
            defined(invoker.include_size_info) && invoker.include_size_info
        if (_include_size_info || _proguard_enabled) {
          _size_info_target = "${target_name}__size_info"
          create_size_info_files(_size_info_target) {
            name = "${invoker.name}.apk"
            build_config = _build_config
            res_size_info_path = _res_size_info_path
            deps = [
              ":$_build_config_target",
              ":$_compile_resources_target",
              ":$_java_target_name",
            ]
          }
          _final_deps += [ ":$_size_info_target" ]
        } else {
          not_needed(invoker, [ "name" ])
        }
      }

      _create_apk_target = "${_template_name}__create"
      _final_deps += [ ":$_create_apk_target" ]
      package_apk("$_create_apk_target") {
        forward_variables_from(invoker,
                               [
                                 "expected_libs_and_assets",
                                 "expected_libs_and_assets_base",
                                 "keystore_name",
                                 "keystore_path",
                                 "keystore_password",
                                 "native_lib_placeholders",
                                 "secondary_abi_loadable_modules",
                                 "secondary_native_lib_placeholders",
                                 "uncompress_dex",
                                 "library_always_compress",
                               ])

        if (defined(expected_libs_and_assets)) {
          build_config_dep = ":$_build_config_target"
          top_target_name = _template_name
        }

        build_config = _build_config
        min_sdk_version = _min_sdk_version
        packaged_resources_path = _arsc_resources_path

        # Need full deps rather than _non_java_deps, because loadable_modules
        # may include .so files extracted by __unpack_aar targets.
        deps = _invoker_deps + [ ":$_build_config_target" ]

        if (_incremental_apk) {
          _dex_target = "//build/android/incremental_install:apk_dex"

          deps += [
            ":$_compile_resources_target",
            _dex_target,
          ]

          dex_path = get_label_info(_dex_target, "target_out_dir") + "/apk.dex"

          # Incremental APKs cannot be installed via `adb install` as such they
          # should be clearly named/labeled "incremental".
          output_apk_path = _incremental_apk_path

          # All native libraries are side-loaded, so use a placeholder to force
          # the proper bitness for the app.
          _has_native_libs =
              defined(_native_libs_filearg) || _loadable_modules != []
          if (_has_native_libs && !defined(native_lib_placeholders)) {
            native_lib_placeholders = [ "libfix.crbug.384638.so" ]
          }
        } else {
          loadable_modules = _loadable_modules
          deps += _all_native_libs_deps + [
                    ":$_compile_resources_target",
                    ":$_merge_manifest_target",
                  ]

          if (defined(_final_dex_path)) {
            dex_path = _final_dex_path
            deps += [ _final_dex_target_dep ]
            if (_use_baseline_profile) {
              # extra_assets is a list of ["{src_path}:{dst_path}"]
              extra_assets = [
                rebase_path(_binary_baseline_profile_path, root_build_dir) +
                    ":dexopt/baseline.prof",
                rebase_path(_binary_baseline_profile_metadata_path,
                            root_build_dir) + ":dexopt/baseline.profm",
              ]
              deps += [ ":$_binary_profile_target" ]
            }
          }

          output_apk_path = _final_apk_path

          if (defined(_native_libs_filearg)) {
            native_libs_filearg = _native_libs_filearg
            secondary_abi_native_libs_filearg = "@FileArg($_rebased_build_config:native:secondary_abi_libraries)"
          }
        }
      }
    }

    if (_incremental_apk) {
      _write_installer_json_rule_name = "${_template_name}__incremental_json"
      action_with_pydeps(_write_installer_json_rule_name) {
        script = "//build/android/incremental_install/write_installer_json.py"
        deps = [ ":$_build_config_target" ] + _all_native_libs_deps

        data = [ _incremental_install_json_path ]
        inputs = [ _build_config ]
        outputs = [ _incremental_install_json_path ]

        _rebased_incremental_apk_path =
            rebase_path(_incremental_apk_path, root_build_dir)
        _rebased_incremental_install_json_path =
            rebase_path(_incremental_install_json_path, root_build_dir)
        args = [
          "--apk-path=$_rebased_incremental_apk_path",
          "--output-path=$_rebased_incremental_install_json_path",
          "--dex-file=@FileArg($_rebased_build_config:deps_info:all_dex_files)",
        ]
        if (_proguard_enabled) {
          args += [ "--show-proguard-warning" ]
        }
        if (defined(_native_libs_filearg)) {
          args += [ "--native-libs=$_native_libs_filearg" ]
          deps += [ _native_libs_filearg_dep ]
        }
        if (_loadable_modules != []) {
          _rebased_loadable_modules =
              rebase_path(_loadable_modules, root_build_dir)
          args += [ "--native-libs=$_rebased_loadable_modules" ]
        }
      }
      _final_deps += [ ":$_write_installer_json_rule_name" ]
    }

    # Generate apk operation related script.
    if (!_is_bundle_module &&
        (!defined(invoker.create_apk_script) || invoker.create_apk_script)) {
      if (_uses_static_library) {
        _install_artifacts_target = "${target_name}__install_artifacts"
        _install_artifacts_json =
            "${target_gen_dir}/${target_name}.install_artifacts"
        generated_file(_install_artifacts_target) {
          output_conversion = "json"
          deps = [ invoker.static_library_provider ]
          outputs = [ _install_artifacts_json ]
          data_keys = [ "install_artifacts" ]
          rebase = root_build_dir
        }
      }
      _apk_operations_target_name = "${target_name}__apk_operations"
      action_with_pydeps(_apk_operations_target_name) {
        _generated_script = "$root_build_dir/bin/${invoker.target_name}"
        script = "//build/android/gyp/create_apk_operations_script.py"
        outputs = [ _generated_script ]
        args = [
          "--script-output-path",
          rebase_path(_generated_script, root_build_dir),
          "--target-cpu=$target_cpu",
        ]
        if (defined(invoker.command_line_flags_file)) {
          args += [
            "--command-line-flags-file",
            invoker.command_line_flags_file,
          ]
        }
        if (_incremental_apk) {
          args += [
            "--incremental-install-json-path",
            rebase_path(_incremental_install_json_path, root_build_dir),
          ]
        } else {
          args += [
            "--apk-path",
            rebase_path(_final_apk_path, root_build_dir),
          ]
        }
        if (_uses_static_library) {
          deps = [ ":$_install_artifacts_target" ]
          _rebased_install_artifacts_json =
              rebase_path(_install_artifacts_json, root_build_dir)
          _static_library_apk_path =
              "@FileArg($_rebased_install_artifacts_json[])"
          args += [
            "--additional-apk",
            _static_library_apk_path,
          ]
        }
        data = []
        data_deps = [
          "//build/android:apk_operations_py",
          "//build/android:stack_tools",
        ]

        if (_proguard_enabled && !_incremental_apk) {
          # Required by logcat command.
          data_deps += [ "//build/android/stacktrace:java_deobfuscate" ]
          data += [ "$_final_apk_path.mapping" ]
          args += [
            "--proguard-mapping-path",
            rebase_path("$_final_apk_path.mapping", root_build_dir),
          ]
        }
      }
      _final_deps += [ ":$_apk_operations_target_name" ]
    }

    _enable_lint = defined(invoker.enable_lint) && invoker.enable_lint &&
                   !disable_android_lint
    if (_enable_lint) {
      android_lint("${target_name}__lint") {
        forward_variables_from(invoker,
                               [
                                 "lint_baseline_file",
                                 "lint_suppressions_file",
                                 "min_sdk_version",
                               ])
        build_config = _build_config
        build_config_dep = ":$_build_config_target"

        # This will use library subtargets under-the-hood
        deps = [ ":$_java_target_name" ]
        if (defined(invoker.lint_suppressions_dep)) {
          deps += [ invoker.lint_suppressions_dep ]
        }
        if (defined(invoker.lint_min_sdk_version)) {
          min_sdk_version = invoker.lint_min_sdk_version
        }
      }
    } else {
      not_needed(invoker,
                 [
                   "lint_baseline_file",
                   "lint_jar_path",
                   "lint_min_sdk_version",
                   "lint_suppressions_dep",
                   "lint_suppressions_file",
                 ])
    }

    group(target_name) {
      forward_variables_from(invoker,
                             [
                               "assert_no_deps",
                               "data",
                               "data_deps",
                               "metadata",
                             ])

      # Generate apk related operations at runtime.
      public_deps = _final_deps

      if (!defined(data_deps)) {
        data_deps = []
      }

      # Include unstripped native libraries so tests can symbolize stacks.
      data_deps += _all_native_libs_deps + [ ":${_java_target_name}__validate" ]
      if (_enable_lint) {
        data_deps += [ ":${target_name}__lint" ]
      }

      if (_uses_static_library) {
        data_deps += [ invoker.static_library_provider ]
      }
    }
  }

  # Declare an Android APK target
  #
  # This target creates an Android APK containing java code, resources, assets,
  # and (possibly) native libraries.
  #
  # Supports all variables of android_apk_or_module(), plus:
  #   apk_name: Name for final apk.
  #   final_apk_path: (Optional) path to output APK.
  #
  # Example
  #   android_apk("foo_apk") {
  #     android_manifest = "AndroidManifest.xml"
  #     sources = [
  #       "android/org/chromium/foo/FooApplication.java",
  #       "android/org/chromium/foo/FooActivity.java",
  #     ]
  #     deps = [
  #       ":foo_support_java"
  #       ":foo_resources"
  #     ]
  #     srcjar_deps = [
  #       ":foo_generated_enum"
  #     ]
  #     shared_libraries = [
  #       ":my_shared_lib",
  #     ]
  #   }
  template("android_apk") {
    # TODO(crbug.com/1042017): Remove.
    not_needed(invoker, [ "no_build_hooks" ])
    android_apk_or_module(target_name) {
      forward_variables_from(
          invoker,
          [
            "aapt_locale_allowlist",
            "additional_jar_files",
            "alternative_android_sdk_dep",
            "android_manifest",
            "android_manifest_dep",
            "annotation_processor_deps",
            "apk_under_test",
            "app_as_shared_lib",
            "assert_no_deps",
            "baseline_profile_path",
            "build_config_include_product_version_resource",
            "bundles_supported",
            "chromium_code",
            "command_line_flags_file",
            "create_apk_script",
            "custom_assertion_handler",
            "data",
            "data_deps",
            "deps",
            "enable_lint",
            "enable_jni_multiplexing",
            "enable_multidex",
            "enable_native_mocks",
            "enable_proguard_checks",
            "enforce_resource_overlays_in_tests",
            "expected_android_manifest",
            "expected_android_manifest_base",
            "expected_android_manifest_library_version_offset",
            "expected_android_manifest_version_code_offset",
            "expected_libs_and_assets",
            "expected_libs_and_assets_base",
            "generate_buildconfig_java",
            "generate_final_jni",
            "generate_native_libraries_java",
            "include_size_info",
            "input_jars_paths",
            "jacoco_never_instrument",
            "javac_args",
            "jni_file_exclusions",
            "keystore_name",
            "keystore_password",
            "keystore_path",
            "lint_baseline_file",
            "lint_min_sdk_version",
            "lint_suppressions_dep",
            "lint_suppressions_file",
            "loadable_modules",
            "manifest_package",
            "max_sdk_version",
            "mergeable_android_manifests",
            "product_config_java_packages",
            "main_component_library",
            "min_sdk_version",
            "native_lib_placeholders",
            "never_incremental",
            "omit_dex",
            "png_to_webp",
            "post_process_package_resources_script",
            "processor_args_javac",
            "proguard_configs",
            "proguard_enabled",
            "proguard_enable_obfuscation",
            "r_java_root_package_name",
            "resource_exclusion_exceptions",
            "resource_exclusion_regex",
            "resource_ids_provider_dep",
            "resource_values_filter_rules",
            "require_native_mocks",
            "secondary_abi_loadable_modules",
            "secondary_abi_shared_libraries",
            "secondary_native_lib_placeholders",
            "shared_libraries",
            "shared_resources",
            "shared_resources_allowlist_locales",
            "shared_resources_allowlist_target",
            "sources",
            "srcjar_deps",
            "static_library_provider",
            "static_library_provider_use_secondary_abi",
            "target_sdk_version",
            "testonly",
            "uncompress_dex",
            "library_always_compress",
            "use_chromium_linker",
            "version_code",
            "version_name",
            "visibility",
          ])
      is_bundle_module = false
      name = invoker.apk_name
      if (defined(invoker.final_apk_path)) {
        final_apk_path = invoker.final_apk_path
      } else {
        final_apk_path = "$root_build_dir/apks/${invoker.apk_name}.apk"
      }
      metadata = {
        install_artifacts = [ final_apk_path ]
      }
      if (defined(invoker.static_library_provider)) {
        metadata.install_artifacts_barrier = []
      }
    }
  }

  # Declare an Android app bundle module target.
  #
  # The module can be used for an android_apk_or_module().
  #
  # Supports all variables of android_library(), plus:
  #   module_name: Name of the module.
  #   is_base_module: If defined and true, indicates that this is the bundle's
  #     base module (optional).
  #   base_module_target: Base module target of the bundle this module will be
  #     added to (optional). Can only be specified for non-base modules.
  #   bundle_target: Bundle target that this module belongs to (optional).
  #     Can only be specified for base modules.
  template("android_app_bundle_module") {
    _is_base_module = defined(invoker.is_base_module) && invoker.is_base_module

    if (_is_base_module) {
      assert(!defined(invoker.base_module_target))
    } else {
      assert(!defined(invoker.app_as_shared_lib))
      assert(!defined(invoker.shared_resources))
      assert(!defined(invoker.shared_resources_allowlist_target))
      assert(!defined(invoker.shared_resources_allowlist_locales))
      assert(defined(invoker.base_module_target))
      assert(!defined(invoker.bundle_target))
    }

    # android_app_bundle's write_build_config expects module targets to be named
    # according to java_target_patterns otherwise it ignores them when listed in
    # possible_config_deps. See https://crbug.com/1418398.
    if (filter_exclude([ target_name ], [ "*_bundle_module" ]) != []) {
      assert(false,
             "Invalid android_app_bundle_module target name ($target_name), " +
                 "must end in _bundle_module.")
    }

    # TODO(tiborg): We have several flags that are necessary for workarounds
    # that come from the fact that the resources get compiled in the bundle
    # module target, but bundle modules have to have certain flags in
    # common or bundle modules have to know information about the base module.
    # Those flags include version_code, version_name, and base_module_target.
    # It would be better to move the resource compile target into the bundle
    # target. Doing so would keep the bundle modules independent from the bundle
    # and potentially reuse the same bundle modules for multiple bundles.
    android_apk_or_module(target_name) {
      forward_variables_from(
          invoker,
          [
            "add_view_trace_events",
            "aapt_locale_allowlist",
            "additional_jar_files",
            "alternative_android_sdk_dep",
            "android_manifest",
            "android_manifest_dep",
            "annotation_processor_deps",
            "app_as_shared_lib",
            "assert_no_deps",
            "base_module_target",
            "build_config_include_product_version_resource",
            "bundle_target",
            "chromium_code",
            "custom_assertion_handler",
            "data",
            "data_deps",
            "deps",
            "enable_jni_multiplexing",
            "enable_multidex",
            "expected_android_manifest",
            "expected_android_manifest_base",
            "expected_android_manifest_library_version_offset",
            "expected_android_manifest_version_code_offset",
            "generate_buildconfig_java",
            "generate_final_jni",
            "generate_native_libraries_java",
            "input_jars_paths",
            "isolated_splits_enabled",
            "is_base_module",
            "jacoco_never_instrument",
            "jar_excluded_patterns",
            "javac_args",
            "jni_file_exclusions",
            "loadable_modules",
            "product_config_java_packages",
            "main_component_library",
            "manifest_package",
            "max_sdk_version",
            "min_sdk_version",
            "mergeable_android_manifests",
            "module_name",
            "native_lib_placeholders",
            "package_id",
            "parent_module_target",
            "png_to_webp",
            "processor_args_javac",
            "proguard_configs",
            "proguard_enabled",
            "proguard_enable_obfuscation",
            "resource_exclusion_exceptions",
            "resource_exclusion_regex",
            "resource_ids_provider_dep",
            "resource_values_filter_rules",
            "resources_config_paths",
            "secondary_abi_loadable_modules",
            "secondary_abi_shared_libraries",
            "secondary_native_lib_placeholders",
            "shared_libraries",
            "shared_resources",
            "shared_resources_allowlist_locales",
            "shared_resources_allowlist_target",
            "short_resource_paths",
            "srcjar_deps",
            "static_library_provider",
            "static_library_provider_use_secondary_abi",
            "strip_resource_names",
            "strip_unused_resources",
            "target_sdk_version",
            "testonly",
            "library_always_compress",
            "use_chromium_linker",
            "uses_split",
            "version_code",
            "version_name",
            "visibility",
          ])
      is_bundle_module = true
      generate_buildconfig_java = _is_base_module
      if (defined(uses_split)) {
        assert(defined(parent_module_target),
               "Must set parent_module_target when uses_split is set")
      }
    }
  }

  # Declare an Android instrumentation test runner.
  #
  # This target creates a wrapper script to run Android instrumentation tests.
  #
  # Arguments:
  #   android_test_apk: The target containing the tests.
  #
  #   The following args are optional:
  #   apk_under_test: The target being tested.
  #   additional_apks: Additional targets to install on device.
  #   data: List of runtime data file dependencies.
  #   data_deps: List of non-linked dependencies.
  #   deps: List of private dependencies.
  #   extra_args: Extra arguments set for test runner.
  #   ignore_all_data_deps: Don't build data_deps and additional_apks.
  #   modules: Extra dynamic feature modules to install for test target. Can
  #     only be used if |apk_under_test| is an Android app bundle.
  #   fake_modules: Similar to |modules| but fake installed instead.
  #   never_incremental: Disable incremental builds.
  #   proguard_enabled: Enable proguard
  #   public_deps: List of public dependencies
  #
  # Example
  #   instrumentation_test_runner("foo_test_for_bar") {
  #     android_test_apk: ":foo"
  #     apk_under_test: ":bar"
  #   }
  template("instrumentation_test_runner") {
    if (use_rts) {
      action("${invoker.target_name}__rts_filters") {
        script = "//build/add_rts_filters.py"
        rts_file = "${root_build_dir}/gen/rts/${invoker.target_name}.filter"
        inverted_rts_file =
            "${root_build_dir}/gen/rts/${invoker.target_name}_inverted.filter"
        args = [
          rebase_path(rts_file, root_build_dir),
          rebase_path(inverted_rts_file, root_build_dir),
        ]
        outputs = [
          rts_file,
          inverted_rts_file,
        ]
      }
    }
    _incremental_apk = !(defined(invoker.never_incremental) &&
                         invoker.never_incremental) && incremental_install
    _apk_operations_target_name = "${target_name}__apk_operations"
    _apk_target = invoker.android_test_apk
    if (defined(invoker.apk_under_test) && !_incremental_apk) {
      # The actual target is defined in the test_runner_script template.
      _install_artifacts_json =
          "${target_gen_dir}/${target_name}.install_artifacts"
      _install_artifacts_target_name = "${target_name}__install_artifacts"
    }

    action_with_pydeps(_apk_operations_target_name) {
      testonly = true
      script = "//build/android/gyp/create_test_apk_wrapper_script.py"
      deps = []
      _generated_script = "$root_build_dir/bin/${invoker.target_name}"
      outputs = [ _generated_script ]
      _apk_build_config =
          get_label_info(_apk_target, "target_gen_dir") + "/" +
          get_label_info(_apk_target, "name") + ".build_config.json"
      _rebased_apk_build_config = rebase_path(_apk_build_config, root_build_dir)
      args = [
        "--script-output-path",
        rebase_path(_generated_script, root_build_dir),
        "--package-name",
        "@FileArg($_rebased_apk_build_config:deps_info:package_name)",
      ]
      deps += [ "${_apk_target}$build_config_target_suffix" ]
      if (_incremental_apk) {
        args += [
          "--test-apk-incremental-install-json",
          "@FileArg($_rebased_apk_build_config:deps_info:incremental_install_json_path)",
        ]
      } else {
        args += [
          "--test-apk",
          "@FileArg($_rebased_apk_build_config:deps_info:apk_path)",
        ]
      }
      if (defined(invoker.proguard_mapping_path) && !_incremental_apk) {
        args += [
          "--proguard-mapping-path",
          rebase_path(invoker.proguard_mapping_path, root_build_dir),
        ]
      }
      if (defined(invoker.apk_under_test)) {
        if (_incremental_apk) {
          deps += [ "${invoker.apk_under_test}$build_config_target_suffix" ]
          _apk_under_test_build_config =
              get_label_info(invoker.apk_under_test, "target_gen_dir") + "/" +
              get_label_info(invoker.apk_under_test, "name") +
              ".build_config.json"
          _rebased_apk_under_test_build_config =
              rebase_path(_apk_under_test_build_config, root_build_dir)
          _apk_under_test = "@FileArg($_rebased_apk_under_test_build_config:deps_info:incremental_apk_path)"
        } else {
          deps += [ ":${_install_artifacts_target_name}" ]
          _rebased_install_artifacts_json =
              rebase_path(_install_artifacts_json, root_build_dir)
          _apk_under_test = "@FileArg($_rebased_install_artifacts_json[])"
        }
        args += [
          "--additional-apk",
          _apk_under_test,
        ]
      }
      if (defined(invoker.additional_apks)) {
        foreach(additional_apk, invoker.additional_apks) {
          deps += [ "$additional_apk$build_config_target_suffix" ]
          _build_config =
              get_label_info(additional_apk, "target_gen_dir") + "/" +
              get_label_info(additional_apk, "name") + ".build_config.json"
          _rebased_build_config = rebase_path(_build_config, root_build_dir)
          args += [
            "--additional-apk",
            "@FileArg($_rebased_build_config:deps_info:apk_path)",
          ]
        }
        deps += invoker.additional_apks
      }
    }
    test_runner_script(target_name) {
      forward_variables_from(invoker,
                             [
                               "additional_apks",
                               "additional_locales",
                               "apk_under_test",
                               "data",
                               "data_deps",
                               "deps",
                               "extra_args",
                               "fake_modules",
                               "ignore_all_data_deps",
                               "is_unit_test",
                               "modules",
                               "proguard_mapping_path",
                               "use_webview_provider",
                             ])
      test_name = invoker.target_name
      test_type = "instrumentation"
      apk_target = invoker.android_test_apk
      incremental_apk = _incremental_apk

      public_deps = [
        ":$_apk_operations_target_name",
        apk_target,
      ]
      if (defined(invoker.apk_under_test)) {
        public_deps += [ invoker.apk_under_test ]
      }
      if (defined(invoker.additional_apks)) {
        public_deps += invoker.additional_apks
      }
      if (use_rts) {
        if (!defined(data_deps)) {
          data_deps = []
        }
        data_deps += [ ":${invoker.target_name}__rts_filters" ]
      }
    }
  }

  # Declare an Android instrumentation test apk
  #
  # This target creates an Android instrumentation test apk.
  #
  # Supports all variables of android_apk(), plus:
  #   apk_under_test: The apk being tested (optional).
  #
  # Example
  #   android_test_apk("foo_test_apk") {
  #     android_manifest = "AndroidManifest.xml"
  #     apk_name = "FooTest"
  #     apk_under_test = "Foo"
  #     sources = [
  #       "android/org/chromium/foo/FooTestCase.java",
  #       "android/org/chromium/foo/FooExampleTest.java",
  #     ]
  #     deps = [
  #       ":foo_test_support_java"
  #     ]
  #   }
  template("android_test_apk") {
    android_apk(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
      testonly = true

      # The size info enables the test_runner to find the source file location
      # of a test after it is ran.
      include_size_info = true
      data = [ "$root_build_dir/size-info/${invoker.apk_name}.apk.jar.info" ]
      if (defined(invoker.data)) {
        data += invoker.data
      }

      deps = [ "//testing/android/broker:broker_java" ]
      if (defined(invoker.deps)) {
        deps += invoker.deps
      }
      data_deps = [
        # Ensure unstripped libraries are included in runtime deps so that
        # symbolization can be done.
        ":${target_name}__secondary_abi_shared_library_list",
        ":${target_name}__shared_library_list",
      ]
      if (defined(invoker.data_deps)) {
        data_deps += invoker.data_deps
      }
      if (defined(invoker.apk_under_test)) {
        data_deps += [ invoker.apk_under_test ]
      } else {
        enable_native_mocks = true
      }

      if (defined(invoker.apk_under_test)) {
        _under_test_label =
            get_label_info(invoker.apk_under_test, "label_no_toolchain")
        data_deps += [
          "${_under_test_label}__secondary_abi_shared_library_list",
          "${_under_test_label}__shared_library_list",
        ]
      }

      if (defined(invoker.additional_apks)) {
        data_deps += invoker.additional_apks
      }
      if (defined(invoker.use_webview_provider)) {
        data_deps += [ invoker.use_webview_provider ]
      }

      if (defined(invoker.proguard_enabled) && invoker.proguard_enabled &&
          !incremental_install) {
        # When ProGuard is on, we use ProGuard to combine the under test java
        # code and the test java code. This is to allow us to apply all ProGuard
        # optimizations that we ship with, but not have them break tests. The
        # apk under test will still have the same resources, assets, and
        # manifest, all of which are the ones used in the tests.
        proguard_configs = [ "//testing/android/proguard_for_test.flags" ]
        if (defined(invoker.proguard_configs)) {
          proguard_configs += invoker.proguard_configs
        }
        enable_proguard_checks = false
        if (defined(invoker.final_apk_path)) {
          _final_apk_path = final_apk_path
        } else {
          _final_apk_path = "$root_build_dir/apks/${invoker.apk_name}.apk"
        }
        data += [ "$_final_apk_path.mapping" ]
      }

      create_apk_script = false

      forward_variables_from(invoker,
                             "*",
                             TESTONLY_AND_VISIBILITY + [
                                   "data",
                                   "data_deps",
                                   "deps",
                                   "extra_args",
                                   "is_unit_test",
                                   "proguard_configs",
                                 ])
    }
  }

  # Declare an Android instrumentation test apk with wrapper script.
  #
  # This target creates an Android instrumentation test apk with wrapper script
  # to run the test.
  #
  # Supports all variables of android_test_apk.
  template("instrumentation_test_apk") {
    assert(defined(invoker.apk_name))
    _apk_target_name = "${target_name}__test_apk"
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
    android_test_apk(_apk_target_name) {
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
    }
    instrumentation_test_runner(target_name) {
      forward_variables_from(invoker,
                             [
                               "additional_apks",
                               "apk_under_test",
                               "data",
                               "data_deps",
                               "deps",
                               "extra_args",
                               "ignore_all_data_deps",
                               "is_unit_test",
                               "modules",
                               "never_incremental",
                               "public_deps",
                               "use_webview_provider",
                             ])
      android_test_apk = ":${_apk_target_name}"
      if (defined(invoker.proguard_enabled) && invoker.proguard_enabled) {
        proguard_mapping_path =
            "$root_build_dir/apks/${invoker.apk_name}.apk.mapping"
      }
    }
  }

  # Declare an Android gtest apk
  #
  # This target creates an Android apk for running gtest-based unittests.
  #
  # Variables
  #   deps: Specifies the dependencies of this target. These will be passed to
  #     the underlying android_apk invocation and should include the java and
  #     resource dependencies of the apk.
  #   shared_library: shared_library target that contains the unit tests.
  #   apk_name: The name of the produced apk. If unspecified, it uses the name
  #             of the shared_library target suffixed with "_apk".
  #   use_default_launcher: Whether the default activity (NativeUnitTestActivity)
  #     should be used for launching tests.
  #   allow_cleartext_traffic: (Optional) Whether to allow cleartext network
  #     requests during the test.
  #   use_native_activity: Test implements ANativeActivity_onCreate().
  #
  # Example
  #   unittest_apk("foo_unittests_apk") {
  #     deps = [ ":foo_java", ":foo_resources" ]
  #     shared_library = ":foo_unittests"
  #   }
  template("unittest_apk") {
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
    _use_native_activity =
        defined(invoker.use_native_activity) && invoker.use_native_activity
    _android_manifest = "$target_gen_dir/$target_name/AndroidManifest.xml"
    assert(invoker.shared_library != "")

    # This trivial assert is needed in case android_manifest is defined,
    # as otherwise _use_native_activity and _android_manifest would not be used.
    assert(_use_native_activity != "" && _android_manifest != "")

    if (!defined(invoker.android_manifest)) {
      _allow_cleartext_traffic = defined(invoker.allow_cleartext_traffic) &&
                                 invoker.allow_cleartext_traffic
      jinja_template("${target_name}_manifest") {
        _native_library_name = get_label_info(invoker.shared_library, "name")
        if (defined(invoker.android_manifest_template)) {
          input = invoker.android_manifest_template
        } else {
          input =
              "//testing/android/native_test/java/AndroidManifest.xml.jinja2"
        }
        output = _android_manifest
        variables = [
          "is_component_build=${is_component_build}",
          "native_library_name=${_native_library_name}",
          "use_native_activity=${_use_native_activity}",
          "allow_cleartext_traffic=${_allow_cleartext_traffic}",
        ]
      }
    }

    android_apk(target_name) {
      data_deps = []
      forward_variables_from(invoker, "*", TESTONLY_AND_VISIBILITY)
      testonly = true
      create_apk_script = false
      enable_native_mocks = true

      # TODO(crbug.com/1099849): Figure out why angle tests fail to launch
      #     with newer target_sdk_version.
      if (!defined(invoker.target_sdk_version) && _use_native_activity) {
        target_sdk_version = 24
      }

      assert(!defined(invoker.proguard_enabled) || !invoker.proguard_enabled ||
             invoker.proguard_configs != [])

      if (!defined(apk_name)) {
        apk_name = get_label_info(invoker.shared_library, "name")
      }

      if (!defined(android_manifest)) {
        android_manifest_dep = ":${target_name}_manifest"
        android_manifest = _android_manifest
      }

      final_apk_path = "$root_build_dir/${apk_name}_apk/${apk_name}-debug.apk"

      if (!defined(use_default_launcher) || use_default_launcher) {
        deps += [
          "//build/android/gtest_apk:native_test_instrumentation_test_runner_java",
          "//testing/android/native_test:native_test_java",
        ]
      }
      shared_libraries = [ invoker.shared_library ]
      deps += [
        ":${target_name}__secondary_abi_shared_library_list",
        ":${target_name}__shared_library_list",
      ]
    }
  }

  # Generate .java files from .aidl files.
  #
  # This target will store the .java files in a srcjar and should be included in
  # an android_library or android_apk's srcjar_deps.
  #
  # Variables
  #   sources: Paths to .aidl files to compile.
  #   import_include: Path to directory containing .java files imported by the
  #     .aidl files.
  #   interface_file: Preprocessed aidl file to import.
  #
  # Example
  #   android_aidl("foo_aidl") {
  #     import_include = "java/src"
  #     sources = [
  #       "java/src/com/foo/bar/FooBarService.aidl",
  #       "java/src/com/foo/bar/FooBarServiceCallback.aidl",
  #     ]
  #   }
  template("android_aidl") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

      script = "//build/android/gyp/aidl.py"
      depfile = "$target_gen_dir/$target_name.d"
      sources = invoker.sources

      _srcjar_path = "${target_gen_dir}/${target_name}.srcjar"
      _aidl_path = "${android_sdk_build_tools}/aidl"
      _framework_aidl = "$android_sdk/framework.aidl"
      _imports = [ _framework_aidl ]
      if (defined(invoker.interface_file)) {
        assert(invoker.interface_file != "")
        _imports += [ invoker.interface_file ]
      }

      inputs = [ _aidl_path ] + _imports

      outputs = [ _srcjar_path ]
      _rebased_imports = rebase_path(_imports, root_build_dir)
      args = [
        "--aidl-path",
        rebase_path(_aidl_path, root_build_dir),
        "--imports=$_rebased_imports",
        "--srcjar",
        rebase_path(_srcjar_path, root_build_dir),
        "--depfile",
        rebase_path(depfile, root_build_dir),
      ]
      if (defined(invoker.import_include) && invoker.import_include != []) {
        _rebased_import_paths = []
        foreach(_import_path, invoker.import_include) {
          _rebased_import_path = []
          _rebased_import_path = [ rebase_path(_import_path, root_build_dir) ]
          _rebased_import_paths += _rebased_import_path
        }
        args += [ "--includes=$_rebased_import_paths" ]
      }
      args += rebase_path(sources, root_build_dir)
    }
  }

  # Compile a protocol buffer to java.
  #
  # This generates java files from protocol buffers and creates an Android library
  # containing the classes.
  #
  # Variables
  #   sources (required)
  #       Paths to .proto files to compile.
  #
  #   proto_path (required)
  #       Root directory of .proto files.
  #
  #   deps (optional)
  #       Additional dependencies. Passed through to both the action and the
  #       android_library targets.
  #
  #   import_dirs (optional)
  #       A list of extra import directories to be passed to protoc compiler.
  #       WARNING: This circumvents proto checkdeps, and should only be used
  #       when needed, typically when proto files cannot cleanly import through
  #       absolute paths, such as for third_party or generated .proto files.
  #       http://crbug.com/691451 tracks fixing this.
  #
  #   generator_plugin_label (optional)
  #       GN label for plugin executable which generates custom cc stubs.
  #       Don't specify a toolchain, host toolchain is assumed.
  #
  # Example:
  #  proto_java_library("foo_proto_java") {
  #    proto_path = "src/foo"
  #    sources = [ "$proto_path/foo.proto" ]
  #  }
  template("proto_java_library") {
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

    _template_name = target_name

    action_with_pydeps("${_template_name}__protoc_java") {
      # The suffix "__protoc_java.srcjar" is used by SuperSize to identify
      # protobuf symbols.
      _srcjar_path = "$target_gen_dir/$target_name.srcjar"
      script = "//build/protoc_java.py"

      if (defined(invoker.deps)) {
        # Need to care only about targets that might generate .proto files.
        # No need to depend on java_library or android_resource targets.
        deps = filter_exclude(invoker.deps, java_target_patterns)
      }

      sources = invoker.sources
      depfile = "$target_gen_dir/$target_name.d"
      outputs = [ _srcjar_path ]
      args = [
        "--depfile",
        rebase_path(depfile, root_build_dir),
        "--protoc",
        rebase_path(android_protoc_bin, root_build_dir),
        "--proto-path",
        rebase_path(invoker.proto_path, root_build_dir),
        "--srcjar",
        rebase_path(_srcjar_path, root_build_dir),
      ]

      if (defined(invoker.generator_plugin_label)) {
        if (host_os == "win") {
          _host_executable_suffix = ".exe"
        } else {
          _host_executable_suffix = ""
        }

        _plugin_host_label =
            invoker.generator_plugin_label + "($host_toolchain)"
        _plugin_path =
            get_label_info(_plugin_host_label, "root_out_dir") + "/" +
            get_label_info(_plugin_host_label, "name") + _host_executable_suffix
        args += [
          "--plugin",
          rebase_path(_plugin_path, root_build_dir),
        ]
        deps += [ _plugin_host_label ]
        inputs = [ _plugin_path ]
      }

      args += rebase_path(sources, root_build_dir)

      if (defined(invoker.import_dirs)) {
        foreach(_import_dir, invoker.import_dirs) {
          args += [
            "--import-dir",
            rebase_path(_import_dir, root_build_dir),
          ]
        }
      }
    }

    android_library(target_name) {
      chromium_code = false
      sources = []
      srcjar_deps = [ ":${_template_name}__protoc_java" ]
      deps = [ "//third_party/android_deps:protobuf_lite_runtime_java" ]
      if (defined(invoker.deps)) {
        deps += invoker.deps
      }
    }
  }

  # Compile a flatbuffer to java.
  #
  # This generates java files from flat buffers and creates an Android library
  # containing the classes.
  #
  # Variables
  #   sources (required)
  #       Paths to .fbs files to compile.
  #
  #   root_dir (required)
  #       Root directory of .fbs files.
  #
  #   deps (optional)
  #       Additional dependencies. Passed through to both the action and the
  #       android_library targets.
  #
  #   flatc_include_dirs (optional)
  #       A list of extra import directories to be passed to flatc compiler.
  #
  #
  # Example:
  #  flatbuffer_java_library("foo_flatbuffer_java") {
  #    root_dir = "src/foo"
  #    sources = [ "$proto_path/foo.fbs" ]
  #  }
  template("flatbuffer_java_library") {
    forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)

    _template_name = target_name
    _flatc_dep = "//third_party/flatbuffers:flatc($host_toolchain)"
    _flatc_out_dir = get_label_info(_flatc_dep, "root_out_dir")
    _flatc_bin = "$_flatc_out_dir/flatc"

    action_with_pydeps("${_template_name}__flatc_java") {
      _srcjar_path = "$target_gen_dir/$target_name.srcjar"
      script = "//build/android/gyp/flatc_java.py"

      deps = [ _flatc_dep ]
      if (defined(invoker.deps)) {
        deps += invoker.deps
      }
      inputs = [ _flatc_bin ]

      sources = invoker.sources
      outputs = [ _srcjar_path ]
      args = [
               "--flatc",
               rebase_path(_flatc_bin, root_build_dir),
               "--import-dir",
               rebase_path(invoker.root_dir, root_build_dir),
               "--srcjar",
               rebase_path(_srcjar_path, root_build_dir),
             ] + rebase_path(sources, root_build_dir)

      if (defined(invoker.flatc_include_dirs)) {
        foreach(_include_dir, invoker.flatc_include_dirs) {
          args += [
            "--import-dir",
            rebase_path(_include_dir, root_build_dir),
          ]
        }
      }
    }

    android_library(target_name) {
      chromium_code = false
      sources = []
      srcjar_deps = [ ":${_template_name}__flatc_java" ]
      deps = [ "//third_party/flatbuffers:flatbuffers_java" ]
      if (defined(invoker.deps)) {
        deps += invoker.deps
      }
    }
  }

  # Declare an Android library target for a prebuilt AAR.
  #
  # This target creates an Android library containing java code and Android
  # resources. For libraries without resources, it will not generate
  # corresponding android_resources targets.
  #
  # To avoid slowing down "gn gen", an associated .info file must be committed
  # along with the .aar file. In order to create this file, define the target
  # and then run once with the gn arg "update_android_aar_prebuilts = true".
  #
  # Variables
  #   aar_path: Path to the AAR.
  #   info_path: Path to the .aar.info file (generated via
  #       update_android_aar_prebuilts GN arg).
  #   proguard_configs: List of proguard configs to use in final apk step for
  #       any apk that depends on this library.
  #   ignore_aidl: Whether to ignore .aidl files found with the .aar.
  #   ignore_assets: Whether to ignore assets found in the .aar.
  #   ignore_manifest: Whether to ignore creating manifest.
  #   ignore_native_libraries: Whether to ignore .so files found in the .aar.
  #       See also extract_native_libraries.
  #   ignore_proguard_configs: Whether to ignore proguard configs.
  #   strip_resources: Whether to ignore android resources found in the .aar.
  #   custom_package: Java package for generated R.java files.
  #   extract_native_libraries: Whether to extract .so files found in the .aar.
  #       If the file contains .so, either extract_native_libraries or
  #       ignore_native_libraries must be set.
  #   TODO(jbudorick@): remove this arguments after crbug.com/522043 is fixed.
  #   requires_android: Whether this target can only be used for compiling
  #       Android related targets.
  #
  # Example
  #   android_aar_prebuilt("foo_java") {
  #     aar_path = "foo.aar"
  #   }
  template("android_aar_prebuilt") {
    _info_path = "$target_name.info"
    if (defined(invoker.info_path)) {
      _info_path = invoker.info_path
    }
    _output_path = "${target_out_dir}/${target_name}"

    # Some targets only differ by _java with other targets so _java and _junit
    # need to be replaced by non-empty strings to avoid duplicate targets. (e.g.
    # androidx_window_window_java vs androidx_window_window_java_java).
    _target_name_without_java_or_junit =
        string_replace(string_replace(target_name, "_java", "_J"),
                       "_junit",
                       "_U")

    # This unpack target is a python action, not a valid java target. Since the
    # java targets below depend on it, its name must not match the java patterns
    # in internal_rules.gni.
    _unpack_target_name = "${_target_name_without_java_or_junit}__unpack_aar"
    _ignore_aidl = defined(invoker.ignore_aidl) && invoker.ignore_aidl
    _ignore_assets = defined(invoker.ignore_assets) && invoker.ignore_assets
    _ignore_manifest =
        defined(invoker.ignore_manifest) && invoker.ignore_manifest
    _ignore_native_libraries = defined(invoker.ignore_native_libraries) &&
                               invoker.ignore_native_libraries
    _ignore_proguard_configs = defined(invoker.ignore_proguard_configs) &&
                               invoker.ignore_proguard_configs
    _extract_native_libraries = defined(invoker.extract_native_libraries) &&
                                invoker.extract_native_libraries
    _strip_resources =
        defined(invoker.strip_resources) && invoker.strip_resources

    # Allow 'resource_overlay' parameter even if there are no resources in order
    # to keep the logic for generated 'android_aar_prebuilt' rules simple.
    not_needed(invoker, [ "resource_overlay" ])

    _aar_common_args = [ rebase_path(invoker.aar_path, root_build_dir) ]
    if (_strip_resources) {
      _aar_common_args += [ "--ignore-resources" ]
    }
    if (defined(invoker.resource_exclusion_globs)) {
      _aar_common_args +=
          [ "--resource-exclusion-globs=${invoker.resource_exclusion_globs}" ]
    }

    # Scan the AAR file and determine the resources and jar files.
    # Some libraries might not have resources; others might have two jars.
    if (update_android_aar_prebuilts) {
      print("Writing " + rebase_path(_info_path, "//"))
      exec_script("//build/android/gyp/aar.py",
                  [
                        "list",
                        "--output",
                        rebase_path(_info_path, root_build_dir),
                      ] + _aar_common_args)
    }

    # If "gn gen" is failing on the following line, you need to generate an
    # .info file for your new target by running:
    #   gn gen --args='target_os="android" update_android_aar_prebuilts=true' out/tmp
    #   rm -r out/tmp
    _scanned_files = read_file(_info_path, "scope")

    _use_scanned_assets = !_ignore_assets && _scanned_files.assets != []
    _has_resources = _scanned_files.resources != []

    assert(_ignore_aidl || _scanned_files.aidl == [],
           "android_aar_prebuilt() aidl not yet supported." +
               " Implement or use ignore_aidl = true." +
               " http://crbug.com/644439")
    assert(
        !_scanned_files.has_native_libraries ||
            (_ignore_native_libraries || _extract_native_libraries),
        "android_aar_prebuilt() contains .so files." +
            " Please set ignore_native_libraries or extract_native_libraries.")
    assert(
        !(_ignore_native_libraries && _extract_native_libraries),
        "ignore_native_libraries and extract_native_libraries cannot both be set.")
    assert(!_scanned_files.has_native_libraries ||
           _scanned_files.native_libraries != [])
    assert(_scanned_files.has_classes_jar || _scanned_files.subjars == [])

    action_with_pydeps(_unpack_target_name) {
      script = "//build/android/gyp/aar.py"  # Unzips the AAR
      args = [
               "extract",
               "--output-dir",
               rebase_path(_output_path, root_build_dir),
               "--assert-info-file",
               rebase_path(_info_path, root_build_dir),
             ] + _aar_common_args
      inputs = [ invoker.aar_path ]
      outputs = [ "${_output_path}/AndroidManifest.xml" ]
      outputs +=
          get_path_info(rebase_path(_scanned_files.resources, "", _output_path),
                        "abspath")
      if (_scanned_files.has_r_text_file) {
        # Certain packages, in particular Play Services have no R.txt even
        # though its presence is mandated by AAR spec. Such packages cause
        # spurious rebuilds if this output is specified unconditionally.
        outputs += [ "${_output_path}/R.txt" ]
      }

      if (_scanned_files.has_classes_jar) {
        outputs += [ "${_output_path}/classes.jar" ]
      }
      outputs +=
          get_path_info(rebase_path(_scanned_files.subjars, "", _output_path),
                        "abspath")
      if (!_ignore_proguard_configs) {
        if (_scanned_files.has_proguard_flags) {
          outputs += [ "${_output_path}/proguard.txt" ]
        }
      }

      if (_extract_native_libraries && _scanned_files.has_native_libraries) {
        outputs += get_path_info(
                rebase_path(_scanned_files.native_libraries, "", _output_path),
                "abspath")
      }
      if (_use_scanned_assets) {
        outputs +=
            get_path_info(rebase_path(_scanned_files.assets, "", _output_path),
                          "abspath")
      }
    }

    _should_process_manifest =
        !_ignore_manifest && !_scanned_files.is_manifest_empty

    # Create the android_resources target for resources.
    if (_has_resources || _should_process_manifest) {
      _res_target_name = "${target_name}__resources"
      android_resources(_res_target_name) {
        forward_variables_from(invoker,
                               [
                                 "custom_package",
                                 "resource_overlay",
                                 "testonly",
                                 "strip_drawables",
                               ])
        public_deps = [ ":$_unpack_target_name" ]
        if (_should_process_manifest) {
          android_manifest_dep = ":$_unpack_target_name"
          android_manifest = "${_output_path}/AndroidManifest.xml"
        } else if (defined(_scanned_files.manifest_package) &&
                   !defined(custom_package)) {
          custom_package = _scanned_files.manifest_package
        }

        sources = rebase_path(_scanned_files.resources, "", _output_path)
        if (_scanned_files.has_r_text_file) {
          r_text_file = "${_output_path}/R.txt"
        }
      }
    } else if (defined(invoker.strip_drawables)) {
      not_needed(invoker, [ "strip_drawables" ])
    }

    if (_ignore_manifest) {
      # Having this available can be useful for DFMs that depend on AARs. It
      # provides a way to have manifest entries go into the base split while
      # the code goes into a DFM.
      java_group("${target_name}__ignored_manifest") {
        forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
        deps = [ ":$_unpack_target_name" ]
        mergeable_android_manifests = [ "${_output_path}/AndroidManifest.xml" ]
      }
    }

    # Create the android_assets target for assets
    if (_use_scanned_assets) {
      _assets_target_name = "${target_name}__assets"
      android_assets(_assets_target_name) {
        forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
        deps = [ ":$_unpack_target_name" ]
        renaming_sources = []
        renaming_destinations = []
        foreach(_asset_file, _scanned_files.assets) {
          _original_path =
              get_path_info(rebase_path(_asset_file, "", _output_path),
                            "abspath")
          _updated_path = string_replace(_asset_file, "assets/", "", 1)
          renaming_sources += [ _original_path ]
          renaming_destinations += [ _updated_path ]
        }
      }
    }

    _target_label = get_label_info(":$target_name", "label_no_toolchain")

    # Create android_java_prebuilt target for classes.jar.
    if (_scanned_files.has_classes_jar) {
      _java_library_vars = [
        "alternative_android_sdk_dep",
        "bytecode_rewriter_target",
        "enable_bytecode_checks",
        "jar_excluded_patterns",
        "jar_included_patterns",
        "missing_classes_allowlist",
        "requires_android",
        "testonly",
      ]

      # Create android_java_prebuilt target for extra jars within jars/.
      _subjar_targets = []
      foreach(_tuple, _scanned_files.subjar_tuples) {
        _current_target = "${target_name}__subjar_${_tuple[0]}"
        _subjar_targets += [ ":$_current_target" ]
        java_prebuilt(_current_target) {
          forward_variables_from(invoker, _java_library_vars)
          deps = [ ":$_unpack_target_name" ]
          if (!defined(requires_android)) {
            requires_android = true
          }
          supports_android = true
          jar_path = "$_output_path/${_tuple[1]}"
          _base_output_name = get_path_info(jar_path, "name")
          output_name = "${invoker.target_name}-$_base_output_name"
          public_target_label = _target_label
        }
      }

      _jar_target_name = "${target_name}__classes"
      java_prebuilt(_jar_target_name) {
        forward_variables_from(invoker, _java_library_vars)
        forward_variables_from(invoker,
                               [
                                 "deps",
                                 "input_jars_paths",
                                 "mergeable_android_manifests",
                                 "proguard_configs",
                               ])
        if (!defined(deps)) {
          deps = []
        }
        deps += _subjar_targets + [ ":$_unpack_target_name" ]
        if (defined(_res_target_name)) {
          deps += [ ":$_res_target_name" ]
        }
        if (!defined(requires_android)) {
          requires_android = true
        }
        supports_android = true
        jar_path = "$_output_path/classes.jar"
        aar_path = invoker.aar_path
        output_name = invoker.target_name

        if (!_ignore_proguard_configs) {
          if (!defined(proguard_configs)) {
            proguard_configs = []
          }
          if (_scanned_files.has_proguard_flags) {
            proguard_configs += [ "$_output_path/proguard.txt" ]
          }
        }
        public_target_label = _target_label
      }
    }

    java_group(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
      public_deps = [ ":$_unpack_target_name" ]
      if (defined(invoker.public_deps)) {
        public_deps += invoker.public_deps
      }
      deps = []
      if (defined(_jar_target_name)) {
        deps += [ ":$_jar_target_name" ]

        # Although subjars are meant to be private, we add them as deps here
        # because in practice they seem to contain classes required to be in the
        # classpath.
        deps += _subjar_targets
      }
      if (defined(_res_target_name)) {
        deps += [ ":$_res_target_name" ]
      }
      if (defined(_assets_target_name)) {
        deps += [ ":$_assets_target_name" ]
      }
    }
  }

  # Create an Android application bundle from one base android_apk target,
  # and zero or more associated android_apk.
  #
  # Variables:
  #    base_module_target: Name of the android_app_bundle_module target
  #      corresponding to the base module for this application bundle. The
  #      bundle file will include the same content in its base module, though in
  #      a slightly different format.
  #
  #    bundle_base_path: Optional. If set, the bundle will be output to this
  #      directory. Defaults to "$root_build_dir/apks".
  #
  #    bundle_name: Optional. If set, the bundle will be output to the
  #      filename "${bundle_name}.aab".
  #
  #    extra_modules: Optional list of scopes, one per extra module used by
  #      this bundle. Each scope must have a 'name' field that specifies the
  #      module name (which cannot be 'base', since this is reserved for the
  #      base module), and an 'apk_target' field that specified the
  #      corresponding android_apk target name the module is modeled on.
  #
  #    enable_language_splits: Optional. If true, enable APK splits based
  #      on languages.
  #
  #    keystore_path: optional keystore path, used only when generating APKs.
  #    keystore_name: optional keystore name, used only when generating APKs.
  #    keystore_password: optional keystore password, used only when
  #      generating APKs.
  #    rotation_config: optional .textproto to enable key rotation.
  #
  #    command_line_flags_file: Optional. If provided, named of the on-device
  #      file that will be used to store command-line arguments. The default
  #      is 'command_line_flags_file', but this is typically redefined to
  #      something more specific for certain bundles (e.g. the Chromium based
  #      APKs use 'chrome-command-line', the WebView one uses
  #      'webview-command-line').
  #
  #    proguard_enabled: Optional. True if proguarding is enabled for this
  #      bundle. Default is to enable this only for release builds. Note that
  #      this will always perform synchronized proguarding.
  #
  #    proguard_enable_obfuscation: Whether to enable obfuscation (default=true)
  #
  #    enable_multidex: Optional. Enable multidexing of optimized modules jars
  #      when using synchronized proguarding. Only applies to base module.
  #
  #    proguard_android_sdk_dep: Optional. android_system_java_prebuilt() target
  #      used as a library jar for synchronized proguarding.
  #
  #    compress_shared_libraries: Optional. Whether to compress shared libraries
  #      such that they are extracted upon install.
  #
  #    system_image_locale_allowlist: List of locales that should be included
  #      on system APKs generated from this bundle.
  #
  #    static_library_provider: Specifies a single target that this target will
  #      use as a static library APK.
  #      Additionally, when allotting libraries to be packaged into modules, the
  #      libraries packaged into the static library will be accounted for to
  #      avoid library duplication. Effectively, the static library will be
  #      treated as the parent of the base module.
  #
  #    expected_libs_and_assets: Verify the list of included native libraries
  #      and assets is consistent with the given expectation file.
  #    expected_libs_and_assets_base: Treat expected_libs_and_assets as a diff
  #      with this file as the base.
  #    expected_proguard_config: Checks that the merged set of proguard flags
  #      matches the given config.
  #    expected_proguard_config_base: Treat expected_proguard_config as a diff
  #      with this file as the base.
  #
  #    version_code: Optional. Version code of the target.
  #
  #    is_multi_abi: If true will add a library placeholder for the missing ABI
  #      if either the primary or the secondary ABI has no native libraries set.
  #
  #    default_modules_for_testing: (optional): A list of DFM that the wrapper
  #      script should install. This is for local testing only, and does not
  #      affect the actual DFM in production.
  #
  #    add_view_trace_events: (optional): If true will add an additional step to
  #      add trace events to all Android views contained in the bundle. It also
  #      requires build argument enable_trace_event_bytecode_rewriting = true.
  #
  # Example:
  #   android_app_bundle("chrome_public_bundle") {
  #      base_module_target = "//chrome/android:chrome_public_apk"
  #      extra_modules = [
  #        { # NOTE: Scopes require one field per line, and no comma separators.
  #          name = "my_module"
  #          module_target = ":my_module"
  #        },
  #      ]
  #   }
  #
  template("android_app_bundle") {
    _target_name = target_name
    _uses_static_library = defined(invoker.static_library_provider)
    _proguard_enabled =
        defined(invoker.proguard_enabled) && invoker.proguard_enabled

    _min_sdk_version = default_min_sdk_version
    if (defined(invoker.min_sdk_version)) {
      _min_sdk_version = invoker.min_sdk_version
    }

    _bundle_base_path = "$root_build_dir/apks"
    if (defined(invoker.bundle_base_path)) {
      _bundle_base_path = invoker.bundle_base_path
    }

    _bundle_name = _target_name
    if (defined(invoker.bundle_name)) {
      _bundle_name = invoker.bundle_name
    }
    _bundle_path = "$_bundle_base_path/${_bundle_name}.aab"
    _rebased_bundle_path = rebase_path(_bundle_path, root_build_dir)

    _base_target_name = get_label_info(invoker.base_module_target, "name")
    _base_target_gen_dir =
        get_label_info(invoker.base_module_target, "target_gen_dir")
    _base_module_build_config =
        "$_base_target_gen_dir/${_base_target_name}.build_config.json"
    _base_module_build_config_target =
        "${invoker.base_module_target}$build_config_target_suffix"
    _rebased_base_module_build_config =
        rebase_path(_base_module_build_config, root_build_dir)

    _modules = [
      {
        name = "base"
        module_target = invoker.base_module_target
        build_config = _base_module_build_config
        build_config_target = _base_module_build_config_target
        if (_uses_static_library) {
          parent = "lib"
        }
      },
    ]

    if (_proguard_enabled) {
      _dex_target = "${_target_name}__dex"
      _proguard_mapping_path = "${_bundle_path}.mapping"
    }

    assert(_proguard_enabled || !defined(invoker.enable_multidex),
           "Bundle only adds dexing step if proguarding is enabled.")

    if (defined(invoker.extra_modules)) {
      _module_count = 0
      not_needed([ "_module_count" ])

      foreach(_module, invoker.extra_modules) {
        _module_count += 1
        assert(defined(_module.name),
               "Missing 'name' field for extra module #${_module_count}.")
        assert(_module.name != "base",
               "Module name 'base' is reserved for the main bundle module")
        assert(
            defined(_module.module_target),
            "Missing 'module_target' field for extra module ${_module.name}.")
        _module_target = _module.module_target
        _module_target_name = get_label_info(_module_target, "name")
        _module_target_gen_dir =
            get_label_info(_module_target, "target_gen_dir")
        _module.build_config =
            "$_module_target_gen_dir/${_module_target_name}.build_config.json"
        _module.build_config_target =
            "$_module_target$build_config_target_suffix"
        _module.parent = "base"
        _modules += [ _module ]
      }
    }

    # Make build config, which is required for synchronized proguarding.
    _module_java_targets = []
    _module_build_configs = []
    _module_targets = []
    foreach(_module, _modules) {
      _module_targets += [ _module.module_target ]
      _module_java_targets += [ "${_module.module_target}__java" ]
      _module_build_configs += [ _module.build_config ]
    }

    if (_uses_static_library) {
      _lib_proxy_module = {
        name = "lib"
      }
      _static_library_target_name =
          get_label_info(invoker.static_library_provider, "name")
      _static_library_gen_dir =
          get_label_info(invoker.static_library_provider, "target_gen_dir")
      _lib_proxy_module.build_config = "$_static_library_gen_dir/$_static_library_target_name.build_config.json"
      _lib_proxy_module.build_config_target =
          "${invoker.static_library_provider}$build_config_target_suffix"
    }

    # Allot native libraries to modules they should be packaged into. This is
    # necessary since all libraries that are depended on by multiple modules
    # have to go into base or the static shared library if it exists.
    # TODO(crbug.com/1021565): It would be nice if this lived outside the
    # android_app_bundle template and the static shared library would pull in
    # the libs as allotted by this step.
    _native_libraries_config =
        "$target_gen_dir/$_target_name.native_libraries_config"
    _native_libraries_config_target = "${_target_name}__allot_native_libraries"
    allot_native_libraries(_native_libraries_config_target) {
      modules = _modules
      native_libraries_filearg_keys = [
        "native:libraries",
        "native:loadable_modules",
      ]
      output = _native_libraries_config
      if (_uses_static_library) {
        modules += [ _lib_proxy_module ]
      }
    }
    if (defined(android_app_secondary_abi)) {
      _secondary_abi_native_libraries_config =
          "$target_gen_dir/$_target_name.secondary_abi_native_libraries_config"
      _secondary_abi_native_libraries_config_target =
          "${_target_name}__allot_secondary_abi_native_libraries"
      allot_native_libraries(_secondary_abi_native_libraries_config_target) {
        modules = _modules
        native_libraries_filearg_keys = [
          "native:secondary_abi_libraries",
          "native:secondary_abi_loadable_modules",
        ]
        output = _secondary_abi_native_libraries_config
        if (_uses_static_library) {
          modules += [ _lib_proxy_module ]
        }
      }
    }

    # Used to expose the module Java targets of the bundle.
    group("${_target_name}__java") {
      deps = _module_java_targets
    }
    group("${_target_name}__compile_resources") {
      deps = [ "${invoker.base_module_target}__compile_resources" ]
    }

    _build_config = "$target_gen_dir/${_target_name}.build_config.json"
    _rebased_build_config = rebase_path(_build_config, root_build_dir)
    _build_config_target = "$_target_name$build_config_target_suffix"
    if (defined(invoker.proguard_android_sdk_dep)) {
      _android_sdk_dep = invoker.proguard_android_sdk_dep
    } else {
      _android_sdk_dep = default_android_sdk_dep
    }

    if (_proguard_enabled) {
      _proguard_mapping_path = "${_bundle_path}.mapping"
      _add_view_trace_events =
          defined(invoker.add_view_trace_events) &&
          invoker.add_view_trace_events && enable_trace_event_bytecode_rewriting
    } else {
      not_needed(invoker, [ "add_view_trace_events" ])
    }

    write_build_config(_build_config_target) {
      type = "android_app_bundle"
      possible_config_deps = _module_targets + [ _android_sdk_dep ]
      build_config = _build_config
      proguard_enabled = _proguard_enabled
      module_build_configs = _module_build_configs
      modules = _modules

      if (_proguard_enabled) {
        add_view_trace_events = _add_view_trace_events
        proguard_mapping_path = _proguard_mapping_path
      }
    }

    if (_proguard_enabled) {
      if (_add_view_trace_events) {
        _trace_event_rewriter_target =
            "//build/android/bytecode:trace_event_adder"
        _rewritten_jar_target_name = "${target_name}__trace_event_rewritten"
        _rewriter_path = root_build_dir + "/bin/helper/trace_event_adder"
        _stamp = "${target_out_dir}/${target_name}.trace_event_rewrite.stamp"
        action_with_pydeps(_rewritten_jar_target_name) {
          script = "//build/android/gyp/trace_event_bytecode_rewriter.py"
          inputs = [
            _rewriter_path,
            _build_config,
          ]
          outputs = [ _stamp ]
          depfile = "$target_gen_dir/$_rewritten_jar_target_name.d"
          args = [
            "--stamp",
            rebase_path(_stamp, root_build_dir),
            "--depfile",
            rebase_path(depfile, root_build_dir),
            "--script",
            rebase_path(_rewriter_path, root_build_dir),
            "--classpath",
            "@FileArg($_rebased_build_config:deps_info:javac_full_classpath)",
            "--classpath",
            "@FileArg($_rebased_build_config:android:sdk_jars)",
            "--input-jars",
            "@FileArg($_rebased_build_config:deps_info:device_classpath)",
            "--output-jars",
            "@FileArg($_rebased_build_config:deps_info:trace_event_rewritten_device_classpath)",
          ]
          deps = [
                   ":$_build_config_target",
                   _trace_event_rewriter_target,
                 ] + _module_java_targets
        }
      }

      dex(_dex_target) {
        forward_variables_from(invoker,
                               [
                                 "custom_assertion_handler",
                                 "expected_proguard_config",
                                 "expected_proguard_config_base",
                                 "proguard_enable_obfuscation",
                               ])
        if (defined(expected_proguard_config)) {
          top_target_name = _target_name
        }
        min_sdk_version = _min_sdk_version
        add_view_trace_events = _add_view_trace_events
        proguard_enabled = true
        proguard_mapping_path = _proguard_mapping_path
        build_config = _build_config

        deps = _module_java_targets + [ ":$_build_config_target" ]
        if (_add_view_trace_events) {
          deps += [ ":${_rewritten_jar_target_name}" ]
        }
        modules = _modules
      }
    }

    _all_create_module_targets = []
    _all_module_zip_paths = []
    _all_module_build_configs = []
    _all_module_unused_resources_deps = []
    foreach(_module, _modules) {
      _module_target = _module.module_target
      _module_build_config = _module.build_config
      _module_build_config_target = _module.build_config_target
      _module_target_name = get_label_info(_module_target, "name")

      if (!_proguard_enabled) {
        _dex_target = "${_module_target_name}__final_dex"
        _dex_path = "$target_out_dir/$_module_target_name/$_module_target_name.mergeddex.jar"
        dex(_dex_target) {
          forward_variables_from(invoker, [ "custom_assertion_handler" ])
          min_sdk_version = _min_sdk_version
          output = _dex_path
          build_config = _build_config

          # This will be a pure dex-merge.
          input_dex_filearg = "@FileArg($_rebased_build_config:modules:${_module.name}:all_dex_files)"
          enable_desugar = false

          deps = [
            ":$_build_config_target",
            ":${_module_target_name}__java",
          ]
        }
      }
      _dex_target_for_module = ":$_dex_target"

      _use_baseline_profile =
          _proguard_enabled && defined(invoker.baseline_profile_path) &&
          enable_baseline_profiles
      if (_use_baseline_profile) {
        _binary_profile_target =
            "${_module_target_name}__binary_baseline_profile"
        _binary_baseline_profile_path = "$target_out_dir/$_module_target_name/$_module_target_name.baseline.prof"
        _binary_baseline_profile_metadata_path =
            _binary_baseline_profile_path + "m"
        create_binary_profile(_binary_profile_target) {
          forward_variables_from(invoker, TESTONLY_AND_VISIBILITY)
          binary_baseline_profile_path = _binary_baseline_profile_path
          binary_baseline_profile_metadata_path =
              _binary_baseline_profile_metadata_path
          proguard_mapping_path = _proguard_mapping_path
          build_config = _module_build_config
          input_profile_path = invoker.baseline_profile_path
          deps = [
            _dex_target_for_module,
            _module_build_config_target,
          ]
        }
      } else {
        not_needed(invoker, [ "baseline_profile_path" ])
      }

      # Generate one module .zip file per bundle module.
      #
      # Important: the bundle tool uses the module's zip filename as
      # the internal module name inside the final bundle, in other words,
      # this file *must* be named ${_module.name}.zip
      _create_module_target = "${_target_name}__${_module.name}__create"
      _module_zip_path = "$target_out_dir/$target_name/${_module.name}.zip"
      create_android_app_bundle_module(_create_module_target) {
        forward_variables_from(invoker,
                               [
                                 "is_multi_abi",
                                 "uncompress_dex",
                               ])
        module_name = _module.name
        min_sdk_version = _min_sdk_version
        build_config = _module_build_config
        module_zip_path = _module_zip_path
        native_libraries_config = _native_libraries_config
        if (!_proguard_enabled) {
          dex_path = _dex_path
          # dex_path is read from the build_config in the proguard case.
        }

        if (module_name == "base" &&
            defined(invoker.expected_libs_and_assets)) {
          forward_variables_from(invoker,
                                 [
                                   "expected_libs_and_assets",
                                   "expected_libs_and_assets_base",
                                 ])
          top_target_name = _target_name
          build_config_target = _module_build_config_target
          native_libraries_config_target = ":$_native_libraries_config_target"
          if (defined(android_app_secondary_abi)) {
            secondary_abi_native_libraries_config_target =
                ":$_secondary_abi_native_libraries_config_target"
          }
        }

        deps = [
          ":$_native_libraries_config_target",
          _dex_target_for_module,
          _module_build_config_target,
          _module_target,
        ]

        if (defined(android_app_secondary_abi)) {
          secondary_abi_native_libraries_config =
              _secondary_abi_native_libraries_config
          deps += [ ":$_secondary_abi_native_libraries_config_target" ]
        }

        if (_use_baseline_profile) {
          # extra_assets is a list of ["{src_path}:{dst_path}"]
          extra_assets = [
            rebase_path(_binary_baseline_profile_path, root_build_dir) +
                ":dexopt/baseline.prof",
            rebase_path(_binary_baseline_profile_metadata_path,
                        root_build_dir) + ":dexopt/baseline.profm",
          ]
          deps += [ ":$_binary_profile_target" ]
        }
      }

      _all_create_module_targets += [
        ":$_create_module_target",
        _module_build_config_target,
        "${_module_target}__compile_resources",
      ]
      _all_module_zip_paths += [ _module_zip_path ]
      _all_module_build_configs += [ _module_build_config ]
      _all_module_unused_resources_deps += [
        "${_module_target}__compile_resources",
        _dex_target_for_module,
        _module_build_config_target,
      ]
    }
    _strip_unused_resources = defined(invoker.strip_unused_resources) &&
                              invoker.strip_unused_resources
    if (_strip_unused_resources) {
      # Resources only live in the base module so we define the unused resources
      # target only on the base module target.
      _unused_resources_target = "${_base_target_name}__unused_resources"
      _unused_resources_config =
          "${_base_target_gen_dir}/${_base_target_name}_unused_resources.config"
      _unused_resources_r_txt_out =
          "${_base_target_gen_dir}/${_base_target_name}_unused_resources.R.txt"
      unused_resources(_unused_resources_target) {
        deps = _all_module_unused_resources_deps
        all_module_build_configs = _all_module_build_configs
        build_config = _base_module_build_config
        if (_proguard_enabled) {
          proguard_mapping_path = _proguard_mapping_path
        }
        output_config = _unused_resources_config
        output_r_txt = _unused_resources_r_txt_out
      }
      _unused_resources_final_path = "${_bundle_path}.unused_resources"
      _copy_unused_resources_target =
          "${_base_target_name}__copy_unused_resources"
      copy(_copy_unused_resources_target) {
        deps = [ ":$_unused_resources_target" ]
        sources = [ _unused_resources_config ]
        outputs = [ _unused_resources_final_path ]
      }
    }

    _all_rebased_module_zip_paths =
        rebase_path(_all_module_zip_paths, root_build_dir)

    _enable_language_splits = defined(invoker.enable_language_splits) &&
                              invoker.enable_language_splits

    _split_dimensions = []
    if (_enable_language_splits) {
      _split_dimensions += [ "language" ]
    }

    _keystore_path = android_keystore_path
    _keystore_password = android_keystore_password
    _keystore_name = android_keystore_name

    if (defined(invoker.keystore_path)) {
      _keystore_path = invoker.keystore_path
      _keystore_password = invoker.keystore_password
      _keystore_name = invoker.keystore_name
    }

    _rebased_keystore_path = rebase_path(_keystore_path, root_build_dir)

    _bundle_target_name = "${_target_name}__bundle"
    action_with_pydeps(_bundle_target_name) {
      script = "//build/android/gyp/create_app_bundle.py"
      inputs = _all_module_zip_paths + _all_module_build_configs +
               [ _BUNDLETOOL_JAR_PATH ]
      outputs = [ _bundle_path ]
      deps = _all_create_module_targets + [ ":$_build_config_target" ]
      args = [
        "--out-bundle=$_rebased_bundle_path",
        "--rtxt-out-path=$_rebased_bundle_path.R.txt",
        "--pathmap-out-path=$_rebased_bundle_path.pathmap.txt",
        "--module-zips=$_all_rebased_module_zip_paths",
      ]
      if (_split_dimensions != []) {
        args += [ "--split-dimensions=$_split_dimensions" ]
      }
      if (defined(invoker.compress_shared_libraries) &&
          invoker.compress_shared_libraries) {
        args += [ "--compress-shared-libraries" ]
      }

      # Android P+ support loading from stored dex.
      if (_min_sdk_version < 27) {
        args += [ "--compress-dex" ]
      }

      if (defined(invoker.rotation_config)) {
        args += [
          "--rotation-config",
          rebase_path(invoker.rotation_config, root_build_dir),
        ]
      }

      if (treat_warnings_as_errors) {
        args += [ "--warnings-as-errors" ]
      }

      if (_enable_language_splits) {
        args += [ "--base-allowlist-rtxt-path=@FileArg($_rebased_base_module_build_config:deps_info:base_allowlist_rtxt_path)" ]
        if (_strip_unused_resources) {
          # Use the stripped out rtxt file to set resources that are pinned to
          # the default language split.
          _rebased_unused_resources_r_txt_out =
              rebase_path(_unused_resources_r_txt_out, root_build_dir)
          inputs += [ _unused_resources_r_txt_out ]
          deps += [ ":$_unused_resources_target" ]
          args +=
              [ "--base-module-rtxt-path=$_rebased_unused_resources_r_txt_out" ]
        } else {
          args += [ "--base-module-rtxt-path=@FileArg($_rebased_base_module_build_config:deps_info:r_text_path)" ]
        }
      }
      if (defined(invoker.validate_services) && invoker.validate_services) {
        args += [ "--validate-services" ]
      }

      foreach(_module, _modules) {
        _rebased_build_config =
            rebase_path(_module.build_config, root_build_dir)
        args += [
          "--uncompressed-assets=@FileArg(" +
              "$_rebased_build_config:uncompressed_assets)",
          "--rtxt-in-paths=@FileArg(" +
              "$_rebased_build_config:deps_info:r_text_path)",
          "--pathmap-in-paths=@FileArg(" +
              "$_rebased_build_config:deps_info:module_pathmap_path)",
          "--module-name=" + _module.name,
        ]
      }

      # http://crbug.com/725224. Fix for bots running out of memory.
      if (defined(java_cmd_pool_size)) {
        pool = "//build/config/android:java_cmd_pool($default_toolchain)"
      } else {
        pool = "//build/toolchain:link_pool($default_toolchain)"
      }
    }

    # Create size info files for targets that care about size
    # (have proguard enabled).
    if (_proguard_enabled) {
      # Merge all module targets to obtain size info files for all targets.
      _all_module_targets = _module_targets

      _size_info_target = "${_target_name}__size_info"
      create_size_info_files(_size_info_target) {
        name = "$_bundle_name.aab"
        deps = _all_module_targets + [ ":$_build_config_target" ]
        module_build_configs = _all_module_build_configs
      }
    }

    if (_uses_static_library) {
      _install_artifacts_target = "${target_name}__install_artifacts"
      _install_artifacts_json =
          "${target_gen_dir}/${target_name}.install_artifacts"
      generated_file(_install_artifacts_target) {
        output_conversion = "json"
        deps = [ invoker.static_library_provider ]
        outputs = [ _install_artifacts_json ]
        data_keys = [ "install_artifacts" ]
        rebase = root_build_dir
      }
    }

    # Generate a wrapper script for the bundle.
    _android_aapt2_path = android_sdk_tools_bundle_aapt2

    _bundle_apks_path = "$_bundle_base_path/$_bundle_name.apks"
    _bundle_wrapper_script_dir = "$root_build_dir/bin"
    _bundle_wrapper_script_path = "$_bundle_wrapper_script_dir/$_target_name"

    action_with_pydeps("${_target_name}__wrapper_script") {
      script = "//build/android/gyp/create_bundle_wrapper_script.py"
      inputs = [ _base_module_build_config ]
      outputs = [ _bundle_wrapper_script_path ]

      # Telemetry for bundles uses the wrapper script for installation.
      data = [
        _bundle_wrapper_script_path,
        _android_aapt2_path,
        _keystore_path,
        _bundle_path,
      ]
      data_deps = [
        "//build/android:apk_operations_py",
        "//build/android:stack_tools",
      ]

      deps = [ _base_module_build_config_target ]
      args = [
        "--script-output-path",
        rebase_path(_bundle_wrapper_script_path, root_build_dir),
        "--package-name=@FileArg($_rebased_base_module_build_config:deps_info:package_name)",
        "--aapt2",
        rebase_path(_android_aapt2_path, root_build_dir),
        "--bundle-path",
        _rebased_bundle_path,
        "--bundle-apks-path",
        rebase_path(_bundle_apks_path, root_build_dir),
        "--target-cpu=$target_cpu",
        "--keystore-path",
        _rebased_keystore_path,
        "--keystore-password",
        _keystore_password,
        "--key-name",
        _keystore_name,
      ]
      if (defined(invoker.default_modules_for_testing)) {
        args += [ "--default-modules" ] + invoker.default_modules_for_testing
      }
      if (defined(invoker.system_image_locale_allowlist)) {
        args += [
          "--system-image-locales=${invoker.system_image_locale_allowlist}",
        ]
      }
      if (defined(invoker.command_line_flags_file)) {
        args += [
          "--command-line-flags-file",
          invoker.command_line_flags_file,
        ]
      }
      if (_uses_static_library) {
        deps += [ ":$_install_artifacts_target" ]
        _rebased_install_artifacts_json =
            rebase_path(_install_artifacts_json, root_build_dir)
        _static_library_apk_path =
            "@FileArg($_rebased_install_artifacts_json[])"
        args += [
          "--additional-apk",
          _static_library_apk_path,
        ]
      }

      if (_proguard_enabled) {
        args += [
          "--proguard-mapping-path",
          rebase_path(_proguard_mapping_path, root_build_dir),
        ]

        # Required by logcat command.
        data_deps += [ "//build/android/stacktrace:java_deobfuscate" ]
        data += [ _proguard_mapping_path ]
      }
    }

    _enable_lint = defined(invoker.enable_lint) && invoker.enable_lint &&
                   !disable_android_lint
    if (_enable_lint) {
      android_lint("${target_name}__lint") {
        forward_variables_from(invoker,
                               [
                                 "lint_baseline_file",
                                 "lint_jar_path",
                                 "lint_suppressions_file",
                               ])
        build_config = _build_config
        build_config_dep = ":$_build_config_target"
        deps = _module_java_targets
        if (defined(invoker.lint_suppressions_dep)) {
          deps += [ invoker.lint_suppressions_dep ]
        }
        if (defined(invoker.lint_min_sdk_version)) {
          min_sdk_version = invoker.lint_min_sdk_version
        } else {
          min_sdk_version = _min_sdk_version
        }
      }
    } else {
      not_needed(invoker,
                 [
                   "lint_baseline_file",
                   "lint_jar_path",
                   "lint_min_sdk_version",
                   "lint_suppressions_dep",
                   "lint_suppressions_file",
                 ])
    }

    group(_target_name) {
      public_deps = [
        ":$_bundle_target_name",
        ":${_target_name}__wrapper_script",
      ]
      if (defined(_size_info_target)) {
        public_deps += [ ":$_size_info_target" ]
      }
      if (_enable_lint) {
        if (!defined(data_deps)) {
          data_deps = []
        }
        data_deps += [ ":${target_name}__lint" ]
      }
    }

    _apks_path = "$root_build_dir/apks/$_bundle_name.apks"
    action_with_pydeps("${_target_name}_apks") {
      script = "//build/android/gyp/create_app_bundle_apks.py"
      inputs = [
        _bundle_path,
        _BUNDLETOOL_JAR_PATH,
      ]
      outputs = [ _apks_path ]
      data = [ _apks_path ]
      args = [
        "--bundle",
        _rebased_bundle_path,
        "--output",
        rebase_path(_apks_path, root_build_dir),
        "--aapt2-path",
        rebase_path(android_sdk_tools_bundle_aapt2, root_build_dir),
        "--keystore-path",
        rebase_path(android_keystore_path, root_build_dir),
        "--keystore-name",
        android_keystore_name,
        "--keystore-password",
        android_keystore_password,
      ]
      if (debuggable_apks) {
        args += [ "--local-testing" ]
      }
      deps = [ ":$_bundle_target_name" ]
      metadata = {
        install_artifacts = [ _apks_path ]
      }
      if (defined(invoker.static_library_provider)) {
        metadata.install_artifacts_barrier = []
      }

      # http://crbug.com/725224. Fix for bots running out of memory.
      if (defined(java_cmd_pool_size)) {
        pool = "//build/config/android:java_cmd_pool($default_toolchain)"
      } else {
        pool = "//build/toolchain:link_pool($default_toolchain)"
      }
    }
  }

  # Create an .apks file from an .aab file. The .apks file will contain the
  # minimal set of .apk files needed for tracking binary size.
  # The file will be created at "$bundle_path_without_extension.minimal.apks".
  #
  # Variables:
  #   bundle_path: Path to the input .aab file.
  #
  # Example:
  #   create_app_bundle_minimal_apks("minimal_apks") {
  #     deps = [
  #       ":bundle_target",
  #     ]
  #     bundle_path = "$root_build_dir/apks/Bundle.aab"
  #   }
  template("create_app_bundle_minimal_apks") {
    action_with_pydeps(target_name) {
      forward_variables_from(invoker, TESTONLY_AND_VISIBILITY + [ "deps" ])
      script = "//build/android/gyp/create_app_bundle_apks.py"
      _dir = get_path_info(invoker.bundle_path, "dir")
      _name = get_path_info(invoker.bundle_path, "name")
      _output_path = "$_dir/$_name.minimal.apks"
      outputs = [ _output_path ]
      inputs = [ invoker.bundle_path ]
      args = [
        "--bundle",
        rebase_path(invoker.bundle_path, root_build_dir),
        "--output",
        rebase_path(_output_path, root_build_dir),
        "--aapt2-path",
        rebase_path(android_sdk_tools_bundle_aapt2, root_build_dir),
        "--keystore-path",
        rebase_path(android_keystore_path, root_build_dir),
        "--keystore-name",
        android_keystore_name,
        "--keystore-password",
        android_keystore_password,
        "--minimal",
      ]
    }
  }
}

# Generate an Android resources target that contains localized strings
# describing the current locale used by the Android framework to display
# UI strings. These are used by
# org.chromium.chrome.browser.ChromeLocalizationUtils.
#
# Variables:
#    ui_locales: List of Chromium locale names to generate resources for.
#
template("generate_ui_locale_resources") {
  _generating_target_name = "${target_name}__generate"
  _rebased_output_zip_path = rebase_path(target_gen_dir, root_gen_dir)
  _output_zip = "${root_out_dir}/resource_zips/${_rebased_output_zip_path}/" +
                "${target_name}.zip"

  action_with_pydeps(_generating_target_name) {
    script = "//build/android/gyp/create_ui_locale_resources.py"
    outputs = [ _output_zip ]
    args = [
      "--locale-list=${invoker.ui_locales}",
      "--output-zip",
      rebase_path(_output_zip, root_build_dir),
    ]
  }

  android_generated_resources(target_name) {
    generating_target = ":$_generating_target_name"
    generated_resources_zip = _output_zip
  }
}