Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGPathBlender.h

Index: Source/core/svg/SVGPathBlender.h
diff --git a/Source/core/svg/SVGPathBlender.h b/Source/core/svg/SVGPathBlender.h
index 3490a246440170d503b2ab8a5932c90bc87895ab..414e9f5f56bd74d7ed929d9d618a7edc9331aba3 100644
--- a/Source/core/svg/SVGPathBlender.h
+++ b/Source/core/svg/SVGPathBlender.h
@@ -21,6 +21,7 @@
 #define SVGPathBlender_h
 
 #include "core/svg/SVGPathConsumer.h"
+#include "platform/heap/Handle.h"
 
 namespace blink {
 
@@ -31,8 +32,8 @@ enum FloatBlendMode {
 
 class SVGPathSource;
 
-class SVGPathBlender {
-    WTF_MAKE_NONCOPYABLE(SVGPathBlender); WTF_MAKE_FAST_ALLOCATED;
+class SVGPathBlender : public NoBaseWillBeGarbageCollectedFinalized<SVGPathBlender> {
+    WTF_MAKE_NONCOPYABLE(SVGPathBlender); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
     SVGPathBlender();
 
@@ -40,6 +41,8 @@ public:
     bool blendAnimatedPath(float, SVGPathSource*, SVGPathSource*, SVGPathConsumer*);
     void cleanup();
 
+    void trace(Visitor*);
+
 private:
     bool blendMoveToSegment();
     bool blendLineToSegment();
@@ -54,9 +57,9 @@ private:
     float blendAnimatedDimensonalFloat(float, float, FloatBlendMode);
     FloatPoint blendAnimatedFloatPoint(const FloatPoint& from, const FloatPoint& to);
 
-    SVGPathSource* m_fromSource;
-    SVGPathSource* m_toSource;
-    SVGPathConsumer* m_consumer;
+    RawPtrWillBeMember<SVGPathSource> m_fromSource;
+    RawPtrWillBeMember<SVGPathSource> m_toSource;
+    RawPtrWillBeMember<SVGPathConsumer> m_consumer;
 
     FloatPoint m_fromCurrentPoint;
     FloatPoint m_toCurrentPoint;