Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGAnimatedEnumerationBase.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 25 matching lines @@
 
 namespace blink {
 
 class SVGAnimatedEnumerationBase : public SVGAnimatedProperty<SVGEnumerationBase> {
 public:
     virtual ~SVGAnimatedEnumerationBase();
 
     void setBaseVal(unsigned short, ExceptionState&);
 
 protected:
-    SVGAnimatedEnumerationBase(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtr<SVGEnumerationBase> initialValue)
+    SVGAnimatedEnumerationBase(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtrWillBeRawPtr<SVGEnumerationBase> initialValue)
         : SVGAnimatedProperty<SVGEnumerationBase>(contextElement, attributeName, initialValue)
     {
     }
 };
 
-}
+} // namespace blink
 
 #endif // SVGAnimatedEnumerationBase_h