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

Source/core/svg/SVGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
  *
  * 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
@@ skipping 427 matching lines @@
         // and tryRemoveEventListener() above will fail. Work around that very seldom problem.
         EventTargetData* data = shadowTreeElement->eventTargetData();
         ASSERT(data);
 
         data->eventListenerMap.removeFirstEventListenerCreatedFromMarkup(eventType);
     }
 
     return true;
 }
 
+void SVGElement::accept(Visitor* visitor) const
+{
+    StyledElement::accept(visitor);
+}
+
 static bool hasLoadListener(Element* element)
 {
     if (element->hasEventListeners(eventNames().loadEvent))
         return true;
 
     Handle<Element> current = adoptRawResult(element);
     for (current = current->parentOrShadowHostElement(); current; current = current->parentOrShadowHostElement()) {
         HandleScope scope;
         const EventListenerVector& entry = current->getEventListeners(eventNames().loadEvent);
         for (size_t i = 0; i < entry.size(); ++i) {
@@ skipping 284 matching lines @@
     if (name == classAttr)
         return isSVGStyledElement();
 
     return animatableAttributes.contains(name);
 }
 #endif
 
 }
 
 #endif // ENABLE(SVG)