Fix virtual/override/final usage in Source/core/svg/.

Source/core/svg/SVGTextPositioningElement.h

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 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 27 matching lines @@
     SVGAnimatedLengthList* y() { return m_y.get(); }
     SVGAnimatedLengthList* dx() { return m_dx.get(); }
     SVGAnimatedLengthList* dy() { return m_dy.get(); }
     SVGAnimatedNumberList* rotate() { return m_rotate.get(); }
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
     SVGTextPositioningElement(const QualifiedName&, Document&);
 
-    virtual void svgAttributeChanged(const QualifiedName&) override final;
-    virtual bool isTextPositioning() const override final { return true; }
+    void svgAttributeChanged(const QualifiedName&) final;
+    bool isTextPositioning() const final { return true; }
 
     RefPtrWillBeMember<SVGAnimatedLengthList> m_x;
     RefPtrWillBeMember<SVGAnimatedLengthList> m_y;
     RefPtrWillBeMember<SVGAnimatedLengthList> m_dx;
     RefPtrWillBeMember<SVGAnimatedLengthList> m_dy;
     RefPtrWillBeMember<SVGAnimatedNumberList> m_rotate;
 };
 
 inline bool isSVGTextPositioningElement(const SVGElement& element)
 {
     return element.isTextPositioning();
 }
 
 DEFINE_SVGELEMENT_TYPE_CASTS_WITH_FUNCTION(SVGTextPositioningElement);
 
 } // namespace blink
 
 #endif // SVGTextPositioningElement_h