1 // Copyright 2014 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 UI_COMPOSITOR_COMPOSITOR_ANIMATION_OBSERVER_H_ 6 #define UI_COMPOSITOR_COMPOSITOR_ANIMATION_OBSERVER_H_ 7 8 #include "base/time/time.h" 9 #include "ui/compositor/compositor_export.h" 10 11 namespace ui { 12 13 class COMPOSITOR_EXPORT CompositorAnimationObserver { 14 public: ~CompositorAnimationObserver()15 virtual ~CompositorAnimationObserver() {} 16 17 virtual void OnAnimationStep(base::TimeTicks timestamp) = 0; 18 }; 19 20 } // namespace ui 21 22 #endif // UI_COMPOSITOR_COMPOSITOR_ANIMATION_OBSERVER_H_ 23