Apply custom property animation

third_party/WebKit/Source/core/animation/EffectStack.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 45 matching lines @@
  public:
   EffectStack();
 
   void add(SampledEffect* sampledEffect) {
     m_sampledEffects.append(sampledEffect);
   }
   bool isEmpty() const { return m_sampledEffects.isEmpty(); }
   bool hasActiveAnimationsOnCompositor(CSSPropertyID) const;
 
   using PropertyHandleFilter = bool (*)(const PropertyHandle&);
+  bool affectsProperties(PropertyHandleFilter) const;
   static ActiveInterpolationsMap activeInterpolations(
       EffectStack*,
       const HeapVector<Member<const InertEffect>>* newAnimations,
       const HeapHashSet<Member<const Animation>>* suppressedAnimations,
       KeyframeEffectReadOnly::Priority,
       PropertyHandleFilter = nullptr);
 
   bool getAnimatedBoundingBox(FloatBox&, CSSPropertyID) const;
   DECLARE_TRACE();
 
  private:
   void removeRedundantSampledEffects();
 
   // Effects sorted by priority. Lower priority at the start of the list.
   HeapVector<Member<SampledEffect>> m_sampledEffects;
 
   friend class AnimationEffectStackTest;
 };
 
 }  // namespace blink
 
 #endif  // EffectStack_h