Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGPathSegLinetoHorizontalRel.h

Index: Source/core/svg/SVGPathSegLinetoHorizontalRel.h
diff --git a/Source/core/svg/SVGPathSegLinetoHorizontalRel.h b/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
index 56e456fc244f9d91b497420a32f4c11a19cff81a..66208d949c6316a768c897d9b01aee08e272604c 100644
--- a/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
+++ b/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
@@ -29,9 +29,9 @@ namespace blink {
 class SVGPathSegLinetoHorizontalRel final : public SVGPathSegLinetoHorizontal {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtr<SVGPathSegLinetoHorizontalRel> create(SVGPathElement* element, float x)
+    static PassRefPtrWillBeRawPtr<SVGPathSegLinetoHorizontalRel> create(SVGPathElement* element, float x)
     {
-        return adoptRef(new SVGPathSegLinetoHorizontalRel(element, x));
+        return adoptRefWillBeNoop(new SVGPathSegLinetoHorizontalRel(element, x));
     }
 
 private: