Import Cobalt 19.master.0.205881
diff --git a/src/base/i18n/string_compare.cc b/src/base/i18n/string_compare.cc
new file mode 100644
index 0000000..2082741
--- /dev/null
+++ b/src/base/i18n/string_compare.cc
@@ -0,0 +1,33 @@
+// Copyright (c) 2013 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.
+
+#include "base/i18n/string_compare.h"
+
+#include "base/logging.h"
+#include "base/strings/utf_string_conversions.h"
+#include "third_party/icu/source/common/unicode/unistr.h"
+
+namespace base {
+namespace i18n {
+
+#if !defined(UCONFIG_NO_COLLATION)
+
+// Compares the character data stored in two different string16 strings by
+// specified Collator instance.
+UCollationResult CompareString16WithCollator(const icu::Collator& collator,
+                                             const string16& lhs,
+                                             const string16& rhs) {
+  UErrorCode error = U_ZERO_ERROR;
+  UCollationResult result = collator.compare(
+      icu::UnicodeString(FALSE, lhs.c_str(), static_cast<int>(lhs.length())),
+      icu::UnicodeString(FALSE, rhs.c_str(), static_cast<int>(rhs.length())),
+      error);
+  DCHECK(U_SUCCESS(error));
+  return result;
+}
+
+#endif
+
+}  // namespace i18n
+}  // namespace base