Web Animations: Enable additive animations in experimental

Source/core/animation/ElementAnimation.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 32 matching lines @@
 #include "wtf/Allocator.h"
 
 
 namespace blink {
 
 class Dictionary;
 
 class ElementAnimation {
     STATIC_ONLY(ElementAnimation);
 public:
-    static Animation* animate(Element& element, const EffectModelOrDictionarySequence& effectInput, double duration, ExceptionState& exceptionState)
+    static Animation* animate(Element& element, const EffectModelOrDictionarySequenceOrDictionary& effectInput, double duration, ExceptionState& exceptionState)
     {
         EffectModel* effect = EffectInput::convert(&element, effectInput, exceptionState);
         if (exceptionState.hadException())
             return 0;
         return animateInternal(element, effect, TimingInput::convert(duration));
     }
 
-    static Animation* animate(Element& element, const EffectModelOrDictionarySequence& effectInput, const KeyframeEffectOptions& timingInput, ExceptionState& exceptionState)
+    static Animation* animate(Element& element, const EffectModelOrDictionarySequenceOrDictionary& effectInput, const KeyframeEffectOptions& timingInput, ExceptionState& exceptionState)
     {
         EffectModel* effect = EffectInput::convert(&element, effectInput, exceptionState);
         if (exceptionState.hadException())
             return 0;
         return animateInternal(element, effect, TimingInput::convert(timingInput));
     }
 
-    static Animation* animate(Element& element, const EffectModelOrDictionarySequence& effectInput, ExceptionState& exceptionState)
+    static Animation* animate(Element& element, const EffectModelOrDictionarySequenceOrDictionary& effectInput, ExceptionState& exceptionState)
     {
         EffectModel* effect = EffectInput::convert(&element, effectInput, exceptionState);
         if (exceptionState.hadException())
             return 0;
         return animateInternal(element, effect, Timing());
     }
 
     static HeapVector<Member<Animation>> getAnimations(Element& element)
     {
         HeapVector<Member<Animation>> animationss;
@@ skipping 13 matching lines @@
     static Animation* animateInternal(Element& element, EffectModel* effect, const Timing& timing)
     {
         KeyframeEffect* keyframeEffect = KeyframeEffect::create(&element, effect, timing);
         return element.document().timeline().play(keyframeEffect);
     }
 };
 
 } // namespace blink
 
 #endif // ElementAnimation_h