Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGStringListTearOff.cpp

Index: Source/core/svg/SVGStringListTearOff.cpp
diff --git a/Source/core/svg/SVGStringListTearOff.cpp b/Source/core/svg/SVGStringListTearOff.cpp
index b8428424bc964b19bb14557d5dabbe9e4cafcfd1..8d5cb1e7da718b8d65af36614cd92030f6822484 100644
--- a/Source/core/svg/SVGStringListTearOff.cpp
+++ b/Source/core/svg/SVGStringListTearOff.cpp
@@ -31,9 +31,11 @@
 #include "config.h"
 #include "core/svg/SVGStringListTearOff.h"
 
+#include "core/svg/SVGElement.h"
+
 namespace blink {
 
-SVGStringListTearOff::SVGStringListTearOff(PassRefPtr<SVGStringList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName)
+SVGStringListTearOff::SVGStringListTearOff(PassRefPtrWillBeRawPtr<SVGStringList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName)
     : SVGPropertyTearOff<SVGStringList>(target, contextElement, propertyIsAnimVal, attributeName)
 {
 }