| // 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_ |