Update more svg classes to use OVERRIDE / FINAL when needed

Source/core/svg/SVGTextContentElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 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 22 matching lines @@
 #include "core/rendering/svg/RenderSVGResource.h"
 #include "core/rendering/svg/SVGTextQuery.h"
 #include "core/svg/SVGElementInstance.h"
 
 namespace WebCore {
 
 // Animated property definitions
 
 // SVGTextContentElement's 'textLength' attribute needs special handling.
 // It should return getComputedTextLength() when textLength is not specified manually.
-class SVGAnimatedTextLength : public SVGAnimatedLength {
+class SVGAnimatedTextLength FINAL : public SVGAnimatedLength {
 public:
     static PassRefPtr<SVGAnimatedTextLength> create(SVGTextContentElement* contextElement)
     {
         return adoptRef(new SVGAnimatedTextLength(contextElement));
     }
 
-    virtual SVGLengthTearOff* baseVal()
+    virtual SVGLengthTearOff* baseVal() OVERRIDE
     {
         SVGTextContentElement* textContentElement = toSVGTextContentElement(contextElement());
         if (!textContentElement->textLengthIsSpecifiedByUser())
             baseValue()->newValueSpecifiedUnits(LengthTypeNumber, textContentElement->getComputedTextLength());
 
         return SVGAnimatedLength::baseVal();
     }
 
 private:
     SVGAnimatedTextLength(SVGTextContentElement* contextElement)
@@ skipping 215 matching lines @@
     SVGElement* element = toSVGElement(renderer->node());
     ASSERT(element);
 
     if (!element->isTextContent())
         return 0;
 
     return toSVGTextContentElement(element);
 }
 
 }