chromium/third_party/blink/renderer/platform/scheduler/main_thread/main_thread_metrics_helper.h

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_MAIN_THREAD_MAIN_THREAD_METRICS_HELPER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_MAIN_THREAD_MAIN_THREAD_METRICS_HELPER_H_

#include <optional>

#include "base/memory/raw_ptr.h"
#include "base/rand_util.h"
#include "base/time/time.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/platform/instrumentation/histogram.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/scheduler/common/metrics_helper.h"
#include "third_party/blink/renderer/platform/scheduler/common/task_priority.h"
#include "third_party/blink/renderer/platform/scheduler/common/thread_load_tracker.h"
#include "third_party/blink/renderer/platform/scheduler/main_thread/main_thread_task_queue.h"
#include "third_party/blink/renderer/platform/scheduler/main_thread/use_case.h"
#include "third_party/blink/renderer/platform/scheduler/public/frame_status.h"
#include "third_party/blink/renderer/platform/scheduler/public/thread_type.h"

namespace blink {
namespace scheduler {

enum class MainThreadTaskLoadState;
class MainThreadTaskQueue;
class MainThreadSchedulerImpl;

enum class UkmRecordingStatus { … };

// Helper class to take care of metrics on behalf of MainThreadScheduler.
// This class should be used only on the main thread.
class PLATFORM_EXPORT MainThreadMetricsHelper : public MetricsHelper { … };

}  // namespace scheduler
}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_MAIN_THREAD_MAIN_THREAD_METRICS_HELPER_H_