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// Copyright 2019 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 UI_GL_VSYNC_OBSERVER_H_
#define UI_GL_VSYNC_OBSERVER_H_
#include "base/time/time.h"
namespace gl {
class GL_EXPORT VSyncObserver {
public:
// Called on vsync thread.
virtual void OnVSync(base::TimeTicks vsync_time,
base::TimeDelta interval) = 0;
protected:
virtual ~VSyncObserver() {}
};
} // namespace gl
#endif // UI_GL_VSYNC_OBSERVER_H_
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