Oilpan: Completely move core/animations/ to oilpan's heap

Source/core/dom/Document.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
@@ skipping 1337 matching lines @@
     OwnPtr<ElementDataCache> m_elementDataCache;
 
 #ifndef NDEBUG
     bool m_didDispatchViewportPropertiesChanged;
 #endif
 
     typedef HashMap<AtomicString, OwnPtr<Locale> > LocaleIdentifierToLocaleMap;
     LocaleIdentifierToLocaleMap m_localeCache;
 
     OwnPtr<AnimationClock> m_animationClock;
-    RefPtr<DocumentTimeline> m_timeline;
-    RefPtr<DocumentTimeline> m_transitionTimeline;
+    RefPtrWillBePersistent<DocumentTimeline> m_timeline;
+    RefPtrWillBePersistent<DocumentTimeline> m_transitionTimeline;
     CompositorPendingAnimations m_compositorPendingAnimations;
 
     RefPtr<Document> m_templateDocument;
     Document* m_templateDocumentHost; // Manually managed weakref (backpointer from m_templateDocument).
 
     Timer<Document> m_didAssociateFormControlsTimer;
     HashSet<RefPtr<Element> > m_associatedFormControls;
 
     HashSet<SVGUseElement*> m_useElementsNeedingUpdate;
     HashSet<Element*> m_layerUpdateElements;
@@ skipping 57 matching lines @@
 inline bool Node::isDocumentNode() const
 {
     return this == document();
 }
 
 Node* eventTargetNodeForDocument(Document*);
 
 } // namespace WebCore
 
 #endif // Document_h