Oilpan: Move the EventListener hierarchy to Oilpan's heap

Source/core/animation/Animation.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 1048 matching lines @@
     default:
         ASSERT_NOT_REACHED();
         break;
     }
     m_animation->endUpdatingState();
 
     if (oldPlayState != newPlayState && newPlayState == Running)
         InspectorInstrumentation::didCreateAnimation(m_animation->timeline()->document(), m_animation);
 }
 
-bool Animation::addEventListener(const AtomicString& eventType, PassRefPtr<EventListener> listener, bool useCapture)
+bool Animation::addEventListener(const AtomicString& eventType, PassRefPtrWillBeRawPtr<EventListener> listener, bool useCapture)
 {
     if (eventType == EventTypeNames::finish)
         UseCounter::count(executionContext(), UseCounter::AnimationFinishEvent);
     return EventTargetWithInlineData::addEventListener(eventType, listener, useCapture);
 }
 
 void Animation::pauseForTesting(double pauseTime)
 {
     RELEASE_ASSERT(!paused());
     setCurrentTimeInternal(pauseTime, TimingUpdateOnDemand);
     if (hasActiveAnimationsOnCompositor())
         toKeyframeEffect(m_content.get())->pauseAnimationForTestingOnCompositor(currentTimeInternal());
     m_isPausedForTesting = true;
     pause();
 }
 
 DEFINE_TRACE(Animation)
 {
     visitor->trace(m_content);
     visitor->trace(m_timeline);
     visitor->trace(m_pendingFinishedEvent);
     visitor->trace(m_finishedPromise);
     visitor->trace(m_readyPromise);
     EventTargetWithInlineData::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace