Oilpan: Allocate all EventTarget derived types on the manged heap.

Source/core/animation/AnimationPlayer.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 23 matching lines @@
 #include "core/animation/AnimationSource.h"
 #include "core/events/EventTarget.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class AnimationTimeline;
 class ExceptionState;
 
 class AnimationPlayer FINAL : public RefCountedWillBeRefCountedGarbageCollected<AnimationPlayer>, public EventTargetWithInlineData {
-    DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<AnimationPlayer>);
+    REFCOUNTED_EVENT_TARGET(AnimationPlayer);
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(AnimationPlayer);
 public:
 
     ~AnimationPlayer();
     static PassRefPtrWillBeRawPtr<AnimationPlayer> create(AnimationTimeline&, AnimationSource*);
 
     // Returns whether the player is finished.
     bool update(TimingUpdateReason);
 
     // timeToEffectChange returns:
     //  infinity  - if this player is no longer in effect
@@ skipping 85 matching lines @@
     }
 
 #if !ENABLE(OILPAN)
     // Checks if the AnimationStack is the last reference holder to the Player.
     // This won't be needed when AnimationPlayer is moved to Oilpan.
     bool canFree() const;
 #endif
 
     virtual bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) OVERRIDE;
 
-    void trace(Visitor*);
+    virtual void trace(Visitor*) OVERRIDE;
 
 private:
     AnimationPlayer(AnimationTimeline&, AnimationSource*);
     double sourceEnd() const;
     bool limited(double currentTime) const;
     double currentTimeWithoutLag() const;
     double currentTimeWithLag() const;
     void updateTimingState(double newCurrentTime);
     void updateCurrentTimingState();
 
@@ skipping 14 matching lines @@
     // This indicates timing information relevant to the player has changed by
     // means other than the ordinary progression of time
     bool m_outdated;
 
     bool m_finished;
 };
 
 } // namespace
 
 #endif