Defer compositor keyframe snapshots until the next style resolve

third_party/WebKit/Source/core/animation/AnimationEffect.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 65 matching lines @@
     public:
         virtual ~EventDelegate() { }
         virtual bool requiresIterationEvents(const AnimationEffect&) = 0;
         virtual void onEventCondition(const AnimationEffect&) = 0;
         DEFINE_INLINE_VIRTUAL_TRACE() { }
     };
 
     virtual ~AnimationEffect() { }
 
     virtual bool isKeyframeEffect() const { return false; }
+    virtual bool isInertEffect() const { return false; }
 
     Phase getPhase() const { return ensureCalculated().phase; }
     bool isCurrent() const { return ensureCalculated().isCurrent; }
     bool isInEffect() const { return ensureCalculated().isInEffect; }
     bool isInPlay() const { return ensureCalculated().isInPlay; }
     double currentIteration() const { return ensureCalculated().currentIteration; }
     double progress() const { return ensureCalculated().progress; }
     double timeToForwardsEffectChange() const { return ensureCalculated().timeToForwardsEffectChange; }
     double timeToReverseEffectChange() const { return ensureCalculated().timeToReverseEffectChange; }
 
@@ skipping 60 matching lines @@
     mutable bool m_needsUpdate;
     mutable double m_lastUpdateTime;
     String m_name;
 
     const CalculatedTiming& ensureCalculated() const;
 };
 
 } // namespace blink
 
 #endif // AnimationEffect_h