Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGClipPathElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 16 matching lines @@
 
 namespace blink {
 
 inline SVGClipPathElement::SVGClipPathElement(Document& document)
     : SVGGraphicsElement(SVGNames::clipPathTag, document)
     , m_clipPathUnits(SVGAnimatedEnumeration<SVGUnitTypes::SVGUnitType>::create(this, SVGNames::clipPathUnitsAttr, SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE))
 {
     addToPropertyMap(m_clipPathUnits);
 }
 
+void SVGClipPathElement::trace(Visitor* visitor)
+{
+    visitor->trace(m_clipPathUnits);
+    SVGGraphicsElement::trace(visitor);
+}
+
 DEFINE_NODE_FACTORY(SVGClipPathElement)
 
 void SVGClipPathElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     parseAttributeNew(name, value);
 }
 
 void SVGClipPathElement::svgAttributeChanged(const QualifiedName& attrName)
 {
     if (attrName != SVGNames::clipPathUnitsAttr) {
@@ skipping 18 matching lines @@
     if (RenderObject* object = renderer())
         object->setNeedsLayoutAndFullPaintInvalidation();
 }
 
 RenderObject* SVGClipPathElement::createRenderer(RenderStyle*)
 {
     return new RenderSVGResourceClipper(this);
 }
 
 }