Oilpan: Move AnimationNode::EventDelegate to oilpan's heap

Source/core/animation/Animation.h

Index: Source/core/animation/Animation.h
diff --git a/Source/core/animation/Animation.h b/Source/core/animation/Animation.h
index ee39480302b450be60a4aabc80f84250bbc2e376..f2e717e33ed270f8269506e76e68bfc6f8423ae7 100644
--- a/Source/core/animation/Animation.h
+++ b/Source/core/animation/Animation.h
@@ -49,7 +49,7 @@ class Animation FINAL : public AnimationNode {
 public:
     enum Priority { DefaultPriority, TransitionPriority };
 
-    static PassRefPtrWillBeRawPtr<Animation> create(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, const Timing&, Priority = DefaultPriority, PassOwnPtr<EventDelegate> = nullptr);
+    static PassRefPtrWillBeRawPtr<Animation> create(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, const Timing&, Priority = DefaultPriority, PassOwnPtrWillBeRawPtr<EventDelegate> = nullptr);
     // Web Animations API Bindings constructors.
     static PassRefPtrWillBeRawPtr<Animation> create(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, const Dictionary& timingInputDictionary);
     static PassRefPtrWillBeRawPtr<Animation> create(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, double duration);
@@ -93,7 +93,7 @@ protected:
     virtual double calculateTimeToEffectChange(bool forwards, double inheritedTime, double timeToNextIteration) const OVERRIDE;
 
 private:
-    Animation(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, const Timing&, Priority, PassOwnPtr<EventDelegate>);
+    Animation(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, const Timing&, Priority, PassOwnPtrWillBeRawPtr<EventDelegate>);
 
     RawPtrWillBeMember<Element> m_target;
     RefPtrWillBeMember<AnimationEffect> m_effect;