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

Source/core/svg/SVGForeignObjectElement.h

 /*
  * Copyright (C) 2006 Apple Inc. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 20 matching lines @@
 
 namespace WebCore {
 
 class SVGForeignObjectElement : public SVGStyledTransformableElement,
                                 public SVGTests,
                                 public SVGLangSpace,
                                 public SVGExternalResourcesRequired {
 public:
     static PassRefPtr<SVGForeignObjectElement> create(const QualifiedName&, const Handle<Document>&);
 
+    virtual void accept(Visitor* visitor) const OVERRIDE { SVGStyledTransformableElement::accept(visitor); }
+
 private:
     SVGForeignObjectElement(const QualifiedName&, const Handle<Document>&);
 
     virtual bool isValid() const { return SVGTests::isValid(); }
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual void svgAttributeChanged(const QualifiedName&);
 
     virtual bool rendererIsNeeded(const NodeRenderingContext&) OVERRIDE;
     virtual bool childShouldCreateRenderer(const NodeRenderingContext&) const;
@@ skipping 13 matching lines @@
     // SVGTests
     virtual void synchronizeRequiredFeatures() { SVGTests::synchronizeRequiredFeatures(this); }
     virtual void synchronizeRequiredExtensions() { SVGTests::synchronizeRequiredExtensions(this); }
     virtual void synchronizeSystemLanguage() { SVGTests::synchronizeSystemLanguage(this); }
 };
 
 } // namespace WebCore
 
 #endif // ENABLE(SVG)
 #endif