[Oilpan] Migrate most classes under core/animations to Oilpan heap.

Source/core/animation/Animation.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 33 matching lines @@
 #include "public/platform/WebCompositorAnimationPlayerClient.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class AnimationTimeline;
 class Element;
 class ExceptionState;
 class WebCompositorAnimationPlayer;
 
-class CORE_EXPORT Animation final
-    : public EventTargetWithInlineData
-    , public RefCountedWillBeNoBase<Animation>
-    , public ActiveDOMObject
-    , public WebCompositorAnimationDelegate
-    , public WebCompositorAnimationPlayerClient {
+class CORE_EXPORT Animation final : public EventTargetWithInlineData, public RefCountedWillBeNoBase<Animation>, public ActiveDOMObject, public WebCompositorAnimationDelegate, public WebCompositorAnimationPlayerClient {
     DEFINE_WRAPPERTYPEINFO();
     REFCOUNTED_EVENT_TARGET(Animation);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Animation);
 public:
     enum AnimationPlayState {
         Idle,
         Pending,
         Running,
         Paused,
         Finished
@@ skipping 136 matching lines @@
     double m_playbackRate;
     double m_startTime;
     double m_holdTime;
 
     unsigned m_sequenceNumber;
 
     typedef ScriptPromiseProperty<RawPtrWillBeMember<Animation>, RawPtrWillBeMember<Animation>, Member<DOMException>> AnimationPromise;
     PersistentWillBeMember<AnimationPromise> m_finishedPromise;
     PersistentWillBeMember<AnimationPromise> m_readyPromise;
 
-    RefPtrWillBeMember<AnimationEffect> m_content;
-    RawPtrWillBeMember<AnimationTimeline> m_timeline;
+    PersistentWillBeMember<AnimationEffect> m_content;
+    PersistentWillBeMember<AnimationTimeline> m_timeline;
     // Reflects all pausing, including via pauseForTesting().
     bool m_paused;
     bool m_held;
     bool m_isPausedForTesting;
 
     // This indicates timing information relevant to the animation's effect
     // has changed by means other than the ordinary progression of time
     bool m_outdated;
 
     bool m_finished;
@@ skipping 51 matching lines @@
 
     OwnPtr<WebCompositorAnimationPlayer> m_compositorPlayer;
 
     bool m_currentTimePending;
     bool m_stateIsBeingUpdated;
 };
 
 } // namespace blink
 
 #endif // Animation_h