[oilpan] Implement accept methods to trace the class hierarchy of SVGElement and all sub-classes.

Source/core/svg/SVGUseElement.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 37 matching lines @@
     virtual ~SVGUseElement();
 
     SVGElementInstance* instanceRoot();
     SVGElementInstance* animatedInstanceRoot() const;
     SVGElementInstance* instanceForShadowTreeElement(Node*) const;
     void invalidateShadowTree();
     void invalidateDependentShadowTrees();
 
     RenderObject* rendererClipChild() const;
 
+    virtual void accept(Visitor* visitor) const OVERRIDE { SVGStyledTransformableElement::accept(visitor); }
+
 private:
     SVGUseElement(const QualifiedName&, const Handle<Document>&, bool wasInsertedByParser);
 
     virtual bool isValid() const { return SVGTests::isValid(); }
     virtual bool supportsFocus() const { return true; }
 
     virtual InsertionNotificationRequest insertedInto(const Handle<ContainerNode>&) OVERRIDE;
     virtual void removedFrom(const Handle<ContainerNode>&) OVERRIDE;
     virtual void buildPendingResource();
 
@@ skipping 64 matching lines @@
     bool m_needsShadowTreeRecreation;
     RefPtr<SVGElementInstance> m_targetElementInstance;
     CachedResourceHandle<CachedSVGDocument> m_cachedDocument;
     Timer<SVGElement> m_svgLoadEventTimer;
 };
 
 }
 
 #endif
 #endif