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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CC_SURFACES_FRAME_SINK_OBSERVER_H_ |
| 6 #define CC_SURFACES_FRAME_SINK_OBSERVER_H_ |
| 7 |
| 8 namespace cc { |
| 9 |
| 10 class BeginFrameSource; |
| 11 |
| 12 class FrameSinkObserver { |
| 13 public: |
| 14 virtual void OnBeginFrameSourceAdded( |
| 15 BeginFrameSource* begin_frame_source) = 0; |
| 16 |
| 17 virtual void OnBeginFrameSourceRemoved( |
| 18 BeginFrameSource* begin_frame_source) = 0; |
| 19 }; |
| 20 |
| 21 } // namespace cc |
| 22 |
| 23 #endif // CC_SURFACES_FRAME_SINK_OBSERVER_H_ |
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