| // Copyright 2016 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_COMPOSITOR_LAYER_OBSERVER_H_ |
| #define UI_COMPOSITOR_LAYER_OBSERVER_H_ |
| |
| #include "ui/compositor/compositor_export.h" |
| |
| namespace ui { |
| |
| class Layer; |
| |
| class COMPOSITOR_EXPORT LayerObserver { |
| public: |
| virtual void DidPaintLayer(Layer* layer, const gfx::Rect& region) {} |
| virtual void SurfaceChanged(Layer* layer) {} |
| virtual void LayerDestroyed(Layer* layer) {} |
| |
| protected: |
| virtual ~LayerObserver() {} |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_COMPOSITOR_LAYER_OBSERVER_H_ |
