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// Copyright 2020 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.
#ifndef ASH_FRAME_THROTTLER_FRAME_THROTTLING_OBSERVER_H_
#define ASH_FRAME_THROTTLER_FRAME_THROTTLING_OBSERVER_H_
#include <stdint.h>
#include <vector>
#include "ash/ash_export.h"
#include "base/macros.h"
#include "base/observer_list_types.h"
namespace aura {
class Window;
}
namespace ash {
// This class observes the start and end of frame throttling.
class ASH_EXPORT FrameThrottlingObserver : public base::CheckedObserver {
public:
virtual void OnThrottlingStarted(const std::vector<aura::Window*>& windows,
uint8_t fps) {}
virtual void OnThrottlingEnded() {}
};
} // namespace ash
#endif // ASH_FRAME_THROTTLER_FRAME_THROTTLING_OBSERVER_H_