Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGAnimatedRect.h

 /*
  * Copyright (C) 2014 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 20 matching lines @@
 #ifndef SVGAnimatedRect_h
 #define SVGAnimatedRect_h
 
 #include "core/svg/SVGRectTearOff.h"
 #include "core/svg/properties/SVGAnimatedProperty.h"
 
 namespace blink {
 
 class SVGAnimatedRect : public SVGAnimatedProperty<SVGRect> {
 public:
-    static PassRefPtr<SVGAnimatedRect> create(SVGElement* contextElement, const QualifiedName& attributeName)
+    static PassRefPtrWillBeRawPtr<SVGAnimatedRect> create(SVGElement* contextElement, const QualifiedName& attributeName)
     {
-        return adoptRef(new SVGAnimatedRect(contextElement, attributeName));
+        return adoptRefWillBeNoop(new SVGAnimatedRect(contextElement, attributeName));
     }
 
 protected:
     SVGAnimatedRect(SVGElement* contextElement, const QualifiedName& attributeName)
         : SVGAnimatedProperty<SVGRect>(contextElement, attributeName, SVGRect::create(SVGRect::InvalidSVGRectTag()))
     {
     }
 };
 
 } // namespace blink
 
 #endif // SVGAnimatedRect_h