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

Source/core/svg/SVGTextPathElement.h

 /*
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 94 matching lines @@
     enum {
         TEXTPATH_METHODTYPE_UNKNOWN = SVGTextPathMethodUnknown,
         TEXTPATH_METHODTYPE_ALIGN = SVGTextPathMethodAlign,
         TEXTPATH_METHODTYPE_STRETCH = SVGTextPathMethodStretch,
         TEXTPATH_SPACINGTYPE_UNKNOWN = SVGTextPathSpacingUnknown,
         TEXTPATH_SPACINGTYPE_AUTO = SVGTextPathSpacingAuto,
         TEXTPATH_SPACINGTYPE_EXACT = SVGTextPathSpacingExact
     };
 
     static PassRefPtr<SVGTextPathElement> create(const QualifiedName&, const Handle<Document>&);
- 
+
+    virtual void accept(Visitor* visitor) const OVERRIDE { SVGTextContentElement::accept(visitor); }
+
 private:
     SVGTextPathElement(const QualifiedName&, const Handle<Document>&);
 
     virtual ~SVGTextPathElement();
 
     void clearResourceReferences();
 
     virtual void buildPendingResource();
     virtual InsertionNotificationRequest insertedInto(const Handle<ContainerNode>&) OVERRIDE;
     virtual void removedFrom(const Handle<ContainerNode>&) OVERRIDE;
@@ skipping 13 matching lines @@
         DECLARE_ANIMATED_ENUMERATION(Method, method, SVGTextPathMethodType)
         DECLARE_ANIMATED_ENUMERATION(Spacing, spacing, SVGTextPathSpacingType)
         DECLARE_ANIMATED_STRING(Href, href)
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
 } // namespace WebCore
 
 #endif // ENABLE(SVG)
 #endif