Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGLengthListTearOff.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 23 matching lines @@
 #include "core/svg/SVGLengthList.h"
 #include "core/svg/properties/SVGListPropertyTearOffHelper.h"
 
 namespace blink {
 
 class SVGLengthListTearOff final
     : public SVGListPropertyTearOffHelper<SVGLengthListTearOff, SVGLengthList>
     , public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtr<SVGLengthListTearOff> create(PassRefPtr<SVGLengthList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
+    static PassRefPtrWillBeRawPtr<SVGLengthListTearOff> create(PassRefPtrWillBeRawPtr<SVGLengthList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
     {
-        return adoptRef(new SVGLengthListTearOff(target, contextElement, propertyIsAnimVal, attributeName));
+        return adoptRefWillBeNoop(new SVGLengthListTearOff(target, contextElement, propertyIsAnimVal, attributeName));
     }
 
 private:
-    SVGLengthListTearOff(PassRefPtr<SVGLengthList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
+    SVGLengthListTearOff(PassRefPtrWillBeRawPtr<SVGLengthList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
         : SVGListPropertyTearOffHelper<SVGLengthListTearOff, SVGLengthList>(target, contextElement, propertyIsAnimVal, attributeName)
     {
     }
 };
 
 } // namespace blink
 
 #endif // SVGLengthListTearOff_h