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

Source/core/svg/SVGAnimationElement.h

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Cameron McCormack <cam@mcc.id.au>
  * Copyright (C) Research In Motion Limited 2011. 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
@@ skipping 58 matching lines @@
 class SVGAnimationElement : public SVGSMILElement,
                             public SVGTests,
                             public SVGExternalResourcesRequired,
                             public ElementTimeControl {
 public:
     // SVGAnimationElement
     float getStartTime() const;
     float getCurrentTime() const;
     float getSimpleDuration(ExceptionCode&) const;
 
+    virtual void accept(Visitor* visitor) const OVERRIDE { SVGSMILElement::accept(visitor); }
+
     // ElementTimeControl
     virtual void beginElement();
     virtual void beginElementAt(float offset);
     virtual void endElement();
     virtual void endElementAt(float offset);
 
     static bool isTargetAttributeCSSProperty(SVGElement*, const QualifiedName&);
 
     virtual bool isAdditive() const;
     bool isAccumulated() const;
@@ skipping 161 matching lines @@
     String m_lastValuesAnimationTo;
     bool m_hasInvalidCSSAttributeType;
     CalcMode m_calcMode;
     AnimationMode m_animationMode;
 };
 
 } // namespace WebCore
 
 #endif // ENABLE(SVG)
 #endif // SVGAnimationElement_h