Update SVG classes to use OVERRIDE / FINAL when needed

Source/core/svg/SVGCircleElement.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 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 21 matching lines @@
 public:
     static PassRefPtr<SVGCircleElement> create(Document&);
 
     SVGAnimatedLength* cx() const { return m_cx.get(); }
     SVGAnimatedLength* cy() const { return m_cy.get(); }
     SVGAnimatedLength* r() const { return m_r.get(); }
 
 private:
     explicit SVGCircleElement(Document&);
 
-    virtual bool isValid() const { return SVGTests::isValid(); }
+    virtual bool isValid() const OVERRIDE { return SVGTests::isValid(); }
     virtual bool supportsFocus() const OVERRIDE { return hasFocusEventListeners(); }
 
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
-    virtual void svgAttributeChanged(const QualifiedName&);
+    virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE;
 
-    virtual bool selfHasRelativeLengths() const;
+    virtual bool selfHasRelativeLengths() const OVERRIDE;
 
     virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
 
     RefPtr<SVGAnimatedLength> m_cx;
     RefPtr<SVGAnimatedLength> m_cy;
     RefPtr<SVGAnimatedLength> m_r;
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGCircleElement)
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
 DEFINE_NODE_TYPE_CASTS(SVGCircleElement, hasTagName(SVGNames::circleTag));
 
 } // namespace WebCore
 
 #endif // SVGCircleElement_h