Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGNumberListTearOff.h

Index: Source/core/svg/SVGNumberListTearOff.h
diff --git a/Source/core/svg/SVGNumberListTearOff.h b/Source/core/svg/SVGNumberListTearOff.h
index 1a5fd5c704c699c0dbc78e8efb38f3a99a989945..91d71f6cbdb42e651448db7f5bbcc9673c85579d 100644
--- a/Source/core/svg/SVGNumberListTearOff.h
+++ b/Source/core/svg/SVGNumberListTearOff.h
@@ -41,13 +41,13 @@ class SVGNumberListTearOff final
     , public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtr<SVGNumberListTearOff> create(PassRefPtr<SVGNumberList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
+    static PassRefPtrWillBeRawPtr<SVGNumberListTearOff> create(PassRefPtrWillBeRawPtr<SVGNumberList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
     {
-        return adoptRef(new SVGNumberListTearOff(target, contextElement, propertyIsAnimVal, attributeName));
+        return adoptRefWillBeNoop(new SVGNumberListTearOff(target, contextElement, propertyIsAnimVal, attributeName));
     }
 
 private:
-    SVGNumberListTearOff(PassRefPtr<SVGNumberList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
+    SVGNumberListTearOff(PassRefPtrWillBeRawPtr<SVGNumberList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
         : SVGListPropertyTearOffHelper<SVGNumberListTearOff, SVGNumberList>(target, contextElement, propertyIsAnimVal, attributeName) { }
 };