Web Animations: Move property handle filtering into AnimationStack building

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

Index: third_party/WebKit/Source/core/animation/AnimationStack.h
diff --git a/third_party/WebKit/Source/core/animation/AnimationStack.h b/third_party/WebKit/Source/core/animation/AnimationStack.h
index 7d462246ad993f983d50dc9f042dcd97091219eb..ac2c0b754118f7a6ff55a5d2cd26a198b9ecb472 100644
--- a/third_party/WebKit/Source/core/animation/AnimationStack.h
+++ b/third_party/WebKit/Source/core/animation/AnimationStack.h
@@ -56,7 +56,9 @@ public:
     void add(SampledEffect* effect) { m_effects.append(effect); }
     bool isEmpty() const { return m_effects.isEmpty(); }
     bool hasActiveAnimationsOnCompositor(CSSPropertyID) const;
-    static ActiveInterpolationsMap activeInterpolations(AnimationStack*, const HeapVector<Member<InertEffect>>* newAnimations, const HeapHashSet<Member<const Animation>>* suppressedAnimations, KeyframeEffect::Priority, double timelineCurrentTime);
+
+    using PropertyHandleFilter = bool (*)(const PropertyHandle&);
+    static ActiveInterpolationsMap activeInterpolations(AnimationStack*, const HeapVector<Member<InertEffect>>* newAnimations, const HeapHashSet<Member<const Animation>>* suppressedAnimations, KeyframeEffect::Priority, double timelineCurrentTime, PropertyHandleFilter = nullptr);
 
     bool getAnimatedBoundingBox(FloatBox&, CSSPropertyID) const;
     DECLARE_TRACE();