Update animation classes to use OVERRIDE / FINAL when needed

Source/core/animation/AnimatableColor.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 38 matching lines @@
     float m_alpha;
     float m_red;
     float m_green;
     float m_blue;
 };
 
 // This class handles both the regular and 'visted link' colors for a given
 // property. Currently it is used for all properties, even those which do not
 // support a separate 'visited link' color (eg SVG properties). This is correct
 // but inefficient.
-class AnimatableColor : public AnimatableValue {
+class AnimatableColor FINAL : public AnimatableValue {
 public:
     static PassRefPtr<AnimatableColor> create(const AnimatableColorImpl&, const AnimatableColorImpl& visitedLinkColor);
     Color color() const { return m_color.toColor(); }
     Color visitedLinkColor() const { return m_visitedLinkColor.toColor(); }
 
 protected:
     virtual PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
     virtual PassRefPtr<AnimatableValue> addWith(const AnimatableValue*) const OVERRIDE;
 
 private:
     AnimatableColor(const AnimatableColorImpl& color, const AnimatableColorImpl& visitedLinkColor)
         : m_color(color)
         , m_visitedLinkColor(visitedLinkColor)
     {
     }
     virtual AnimatableType type() const OVERRIDE { return TypeColor; }
     virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
     const AnimatableColorImpl m_color;
     const AnimatableColorImpl m_visitedLinkColor;
 };
 
 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableColor, isColor());
 
 } // namespace WebCore
 
 #endif // AnimatableColor_h