third_party/perfetto/protos/perfetto/trace/track_event/chrome_renderer_scheduler_state.proto

/*
 * Copyright (C) 2020 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

syntax = "proto2";

package perfetto.protos;

// Describes the state of the RendererScheduler for a given Renderer Process.

// RAIL Mode is an indication of the kind of work that a Renderer is currently
// performing which is in turn used to prioritise work accordingly.
// A fuller description of these modes can be found https://web.dev/rail/
enum ChromeRAILMode {
  RAIL_MODE_NONE = 0;
  RAIL_MODE_RESPONSE = 1;
  RAIL_MODE_ANIMATION = 2;
  RAIL_MODE_IDLE = 3;
  RAIL_MODE_LOAD = 4;
}

// Next id: 2
message ChromeRendererSchedulerState {
  optional ChromeRAILMode rail_mode = 1;

  optional bool is_backgrounded = 2;
  optional bool is_hidden = 3;
}