Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGUseElement.cpp

Index: Source/core/svg/SVGUseElement.cpp
diff --git a/Source/core/svg/SVGUseElement.cpp b/Source/core/svg/SVGUseElement.cpp
index eda255993b0ce5a910c1edc6a38919abf71d8e90..66e69410e1318018a49f161451ff07390bfa31fc 100644
--- a/Source/core/svg/SVGUseElement.cpp
+++ b/Source/core/svg/SVGUseElement.cpp
@@ -78,6 +78,17 @@ SVGUseElement::~SVGUseElement()
 #endif
 }
 
+void SVGUseElement::trace(Visitor* visitor)
+{
+    visitor->trace(m_x);
+    visitor->trace(m_y);
+    visitor->trace(m_width);
+    visitor->trace(m_height);
+    visitor->trace(m_targetElementInstance);
+    SVGGraphicsElement::trace(visitor);
+    SVGURIReference::trace(visitor);
+}
+
 bool SVGUseElement::isSupportedAttribute(const QualifiedName& attrName)
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
@@ -750,10 +761,4 @@ void SVGUseElement::setDocumentResource(ResourcePtr<DocumentResource> resource)
         m_resource->addClient(this);
 }
 
-void SVGUseElement::trace(Visitor* visitor)
-{
-    visitor->trace(m_targetElementInstance);
-    SVGGraphicsElement::trace(visitor);
-}
-
 }