Introduce KeyframeEffectReadOnly interface

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

 /*
  * 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 74 matching lines @@
 bool AnimationStack::hasActiveAnimationsOnCompositor(CSSPropertyID property) const
 {
     for (const auto& sampledEffect : m_sampledEffects) {
         // TODO(dstockwell): move the playing check into AnimationEffectReadOnly and expose both hasAnimations and hasActiveAnimations
         if (sampledEffect->effect() && sampledEffect->effect()->animation()->playing() && sampledEffect->effect()->hasActiveAnimationsOnCompositor(property))
             return true;
     }
     return false;
 }
 
-ActiveInterpolationsMap AnimationStack::activeInterpolations(AnimationStack* animationStack, const HeapVector<Member<const InertEffect>>* newAnimations, const HeapHashSet<Member<const Animation>>* suppressedAnimations, KeyframeEffect::Priority priority, PropertyHandleFilter propertyHandleFilter)
+ActiveInterpolationsMap AnimationStack::activeInterpolations(AnimationStack* animationStack, const HeapVector<Member<const InertEffect>>* newAnimations, const HeapHashSet<Member<const Animation>>* suppressedAnimations, KeyframeEffectReadOnly::Priority priority, PropertyHandleFilter propertyHandleFilter)
 {
     ActiveInterpolationsMap result;
 
     if (animationStack) {
         HeapVector<Member<SampledEffect>>& sampledEffects = animationStack->m_sampledEffects;
         // std::sort doesn't work with OwnPtrs
         nonCopyingSort(sampledEffects.begin(), sampledEffects.end(), compareSampledEffects);
         animationStack->removeRedundantSampledEffects();
         for (const auto& sampledEffect : sampledEffects) {
             if (sampledEffect->priority() != priority || (suppressedAnimations && sampledEffect->effect() && suppressedAnimations->contains(sampledEffect->effect()->animation())))
@@ skipping 47 matching lines @@
             FloatBox expandingBox(originalBox);
             if (!CompositorAnimations::getAnimatedBoundingBox(expandingBox, *effect->model(), startRange, endRange))
                 return false;
             box.expandTo(expandingBox);
         }
     }
     return true;
 }
 
 } // namespace blink