Move isValid implementations into SVGGraphicsElement

Source/core/svg/SVGGraphicsElement.h

 /*
  * Copyright (C) 2004, 2005, 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 35 matching lines @@
     virtual AffineTransform animatedLocalTransform() const;
     virtual AffineTransform* supplementalTransform() OVERRIDE;
 
     virtual SVGRect getBBox();
     SVGRect getStrokeBBox();
 
     // "base class" methods for all the elements which render as paths
     virtual void toClipPath(Path&);
     virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
 
+    virtual bool isValid() const OVERRIDE FINAL { return SVGTests::isValid(); }
+
 protected:
     SVGGraphicsElement(const QualifiedName&, Document&, ConstructionType = CreateSVGElement);
 
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE;
 
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGGraphicsElement)
         DECLARE_ANIMATED_TRANSFORM_LIST(Transform, transform)
     END_DECLARE_ANIMATED_PROPERTIES
@@ skipping 13 matching lines @@
 inline bool isSVGGraphicsElement(const Node& node)
 {
     return node.isSVGElement() && toSVGElement(node).isSVGGraphicsElement();
 }
 
 DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION(SVGGraphicsElement);
 
 } // namespace WebCore
 
 #endif // SVGGraphicsElement_h