Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGPathElement.h

Index: Source/core/svg/SVGPathElement.h
diff --git a/Source/core/svg/SVGPathElement.h b/Source/core/svg/SVGPathElement.h
index 7f4e4202a28ea9ffa2a6dea6265e7019f755ae91..e12fc0aff24f1bb876ea6547a1debc22e2e65b59 100644
--- a/Source/core/svg/SVGPathElement.h
+++ b/Source/core/svg/SVGPathElement.h
@@ -27,6 +27,7 @@
 #include "core/svg/SVGAnimatedPath.h"
 #include "core/svg/SVGGeometryElement.h"
 #include "core/svg/SVGPathByteStream.h"
+#include "platform/heap/Handle.h"
 #include "wtf/WeakPtr.h"
 
 namespace blink {
@@ -57,30 +58,30 @@ public:
     DECLARE_NODE_FACTORY(SVGPathElement);
 
     float getTotalLength();
-    PassRefPtr<SVGPointTearOff> getPointAtLength(float distance);
+    PassRefPtrWillBeRawPtr<SVGPointTearOff> getPointAtLength(float distance);
     unsigned getPathSegAtLength(float distance);
 
     SVGAnimatedNumber* pathLength() { return m_pathLength.get(); }
 
-    PassRefPtr<SVGPathSegClosePath> createSVGPathSegClosePath();
-    PassRefPtr<SVGPathSegMovetoAbs> createSVGPathSegMovetoAbs(float x, float y);
-    PassRefPtr<SVGPathSegMovetoRel> createSVGPathSegMovetoRel(float x, float y);
-    PassRefPtr<SVGPathSegLinetoAbs> createSVGPathSegLinetoAbs(float x, float y);
-    PassRefPtr<SVGPathSegLinetoRel> createSVGPathSegLinetoRel(float x, float y);
-    PassRefPtr<SVGPathSegCurvetoCubicAbs> createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2);
-    PassRefPtr<SVGPathSegCurvetoCubicRel> createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2);
-    PassRefPtr<SVGPathSegCurvetoQuadraticAbs> createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1);
-    PassRefPtr<SVGPathSegCurvetoQuadraticRel> createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1);
-    PassRefPtr<SVGPathSegArcAbs> createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
-    PassRefPtr<SVGPathSegArcRel> createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
-    PassRefPtr<SVGPathSegLinetoHorizontalAbs> createSVGPathSegLinetoHorizontalAbs(float x);
-    PassRefPtr<SVGPathSegLinetoHorizontalRel> createSVGPathSegLinetoHorizontalRel(float x);
-    PassRefPtr<SVGPathSegLinetoVerticalAbs> createSVGPathSegLinetoVerticalAbs(float y);
-    PassRefPtr<SVGPathSegLinetoVerticalRel> createSVGPathSegLinetoVerticalRel(float y);
-    PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2);
-    PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2);
-    PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y);
-    PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y);
+    PassRefPtrWillBeRawPtr<SVGPathSegClosePath> createSVGPathSegClosePath();
+    PassRefPtrWillBeRawPtr<SVGPathSegMovetoAbs> createSVGPathSegMovetoAbs(float x, float y);
+    PassRefPtrWillBeRawPtr<SVGPathSegMovetoRel> createSVGPathSegMovetoRel(float x, float y);
+    PassRefPtrWillBeRawPtr<SVGPathSegLinetoAbs> createSVGPathSegLinetoAbs(float x, float y);
+    PassRefPtrWillBeRawPtr<SVGPathSegLinetoRel> createSVGPathSegLinetoRel(float x, float y);
+    PassRefPtrWillBeRawPtr<SVGPathSegCurvetoCubicAbs> createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2);
+    PassRefPtrWillBeRawPtr<SVGPathSegCurvetoCubicRel> createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2);
+    PassRefPtrWillBeRawPtr<SVGPathSegCurvetoQuadraticAbs> createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1);
+    PassRefPtrWillBeRawPtr<SVGPathSegCurvetoQuadraticRel> createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1);
+    PassRefPtrWillBeRawPtr<SVGPathSegArcAbs> createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
+    PassRefPtrWillBeRawPtr<SVGPathSegArcRel> createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
+    PassRefPtrWillBeRawPtr<SVGPathSegLinetoHorizontalAbs> createSVGPathSegLinetoHorizontalAbs(float x);
+    PassRefPtrWillBeRawPtr<SVGPathSegLinetoHorizontalRel> createSVGPathSegLinetoHorizontalRel(float x);
+    PassRefPtrWillBeRawPtr<SVGPathSegLinetoVerticalAbs> createSVGPathSegLinetoVerticalAbs(float y);
+    PassRefPtrWillBeRawPtr<SVGPathSegLinetoVerticalRel> createSVGPathSegLinetoVerticalRel(float y);
+    PassRefPtrWillBeRawPtr<SVGPathSegCurvetoCubicSmoothAbs> createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2);
+    PassRefPtrWillBeRawPtr<SVGPathSegCurvetoCubicSmoothRel> createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2);
+    PassRefPtrWillBeRawPtr<SVGPathSegCurvetoQuadraticSmoothAbs> createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y);
+    PassRefPtrWillBeRawPtr<SVGPathSegCurvetoQuadraticSmoothRel> createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y);
 
     // Used in the bindings only.
     SVGPathSegListTearOff* pathSegList() { return m_pathSegList->baseVal(); }
@@ -96,6 +97,8 @@ public:
 
     virtual FloatRect getBBox() override;
 
+    virtual void trace(Visitor*) override;
+
 private:
     explicit SVGPathElement(Document&);
 
@@ -108,8 +111,8 @@ private:
 
     void invalidateMPathDependencies();
 
-    RefPtr<SVGAnimatedNumber> m_pathLength;
-    RefPtr<SVGAnimatedPath> m_pathSegList;
+    RefPtrWillBeMember<SVGAnimatedNumber> m_pathLength;
+    RefPtrWillBeMember<SVGAnimatedPath> m_pathSegList;
 };
 
 } // namespace blink