Update animation classes to use OVERRIDE / FINAL when needed

Source/core/animation/AnimatableSVGPaint.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #ifndef AnimatableSVGPaint_h
 #define AnimatableSVGPaint_h
 
 #include "core/animation/AnimatableColor.h"
 #include "core/animation/AnimatableValue.h"
 #include "core/svg/SVGPaint.h"
 
 namespace WebCore {
 
-class AnimatableSVGPaint : public AnimatableValue {
+class AnimatableSVGPaint FINAL : public AnimatableValue {
 public:
     virtual ~AnimatableSVGPaint() { }
     static PassRefPtr<AnimatableSVGPaint> create(SVGPaint::SVGPaintType type, const Color& color, const String& uri)
     {
         return create(type, AnimatableColorImpl(color), uri);
     }
     static PassRefPtr<AnimatableSVGPaint> create(SVGPaint::SVGPaintType type, const AnimatableColorImpl& color, const String& uri)
     {
         return adoptRef(new AnimatableSVGPaint(type, color, uri));
     }
@@ skipping 19 matching lines @@
     SVGPaint::SVGPaintType m_type;
     AnimatableColorImpl m_color;
     String m_uri;
 };
 
 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableSVGPaint, isSVGPaint());
 
 } // namespace WebCore
 
 #endif // AnimatableSVGPaint_h