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

Source/core/animation/TimedItemTiming.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef TimedItemTiming_h
 #define TimedItemTiming_h
 
 #include "core/animation/TimedItem.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-class TimedItemTiming : public RefCounted<TimedItemTiming> {
+class TimedItemTiming : public RefCountedWillBeGarbageCollectedFinalized<TimedItemTiming> {
 public:
-    static PassRefPtr<TimedItemTiming> create(TimedItem* parent);
+    static PassRefPtrWillBeRawPtr<TimedItemTiming> create(TimedItem* parent);
     double delay();
     double endDelay();
     String fill();
     double iterationStart();
     double iterations();
     void getDuration(String propertyName, bool& element0Enabled, double& element0, bool& element1Enabled, String& element1);
     double playbackRate();
     String direction();
     String easing();
 
     void setDelay(double);
     void setEndDelay(double);
     void setFill(String);
     void setIterationStart(double);
     void setIterations(double);
     bool setDuration(String name, double duration);
     void setPlaybackRate(double);
     void setDirection(String);
     void setEasing(String);
+
+    void trace(Visitor*);
+
 private:
-    RefPtr<TimedItem> m_parent;
-    TimedItemTiming(TimedItem* parent);
+    RefPtrWillBeMember<TimedItem> m_parent;
+    explicit TimedItemTiming(TimedItem*);
 };
 
 } // namespace WebCore
 
 #endif