Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGAnimatedInteger.cpp

Index: Source/core/svg/SVGAnimatedInteger.cpp
diff --git a/Source/core/svg/SVGAnimatedInteger.cpp b/Source/core/svg/SVGAnimatedInteger.cpp
index d51b9217db4820345447f096d523f642df09406d..a43150bd8b4747bab3dcfdc2433fb531742a597c 100644
--- a/Source/core/svg/SVGAnimatedInteger.cpp
+++ b/Source/core/svg/SVGAnimatedInteger.cpp
@@ -32,6 +32,7 @@
 #include "core/svg/SVGAnimatedInteger.h"
 
 #include "core/svg/SVGAnimatedIntegerOptionalInteger.h"
+#include "core/svg/SVGElement.h"
 
 namespace blink {
 
@@ -45,4 +46,10 @@ void SVGAnimatedInteger::synchronizeAttribute()
     SVGAnimatedProperty<SVGInteger>::synchronizeAttribute();
 }
 
+void SVGAnimatedInteger::trace(Visitor* visitor)
+{
+    visitor->trace(m_parentIntegerOptionalInteger);
+    SVGAnimatedProperty<SVGInteger>::trace(visitor);
+}
+
 }