Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGStringList.h

Index: Source/core/svg/SVGStringList.h
diff --git a/Source/core/svg/SVGStringList.h b/Source/core/svg/SVGStringList.h
index 8cfcd17c9296dd10b5f8169b0a7c4704b085ff5a..4c86da2bdb1099a9d19c44ed66e0f1c2b4c0bf08 100644
--- a/Source/core/svg/SVGStringList.h
+++ b/Source/core/svg/SVGStringList.h
@@ -54,9 +54,9 @@ class SVGStringList final : public SVGPropertyHelper<SVGStringList> {
 public:
     typedef SVGStringListTearOff TearOffType;
 
-    static PassRefPtr<SVGStringList> create()
+    static PassRefPtrWillBeRawPtr<SVGStringList> create()
     {
-        return adoptRef(new SVGStringList());
+        return adoptRefWillBeNoop(new SVGStringList());
     }
 
     virtual ~SVGStringList();
@@ -78,8 +78,8 @@ public:
     virtual String valueAsString() const override;
 
     virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) override;
-    virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> fromValue, PassRefPtr<SVGPropertyBase> toValue, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement*) override;
-    virtual float calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement*) override;
+    virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtrWillBeRawPtr<SVGPropertyBase> fromValue, PassRefPtrWillBeRawPtr<SVGPropertyBase> toValue, PassRefPtrWillBeRawPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement*) override;
+    virtual float calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> to, SVGElement*) override;
 
     static AnimatedPropertyType classType() { return AnimatedStringList; }