Remove AtomicStringImpl.

Source/core/page/animation/CompositeAnimation.h

 /*
  * Copyright (C) 2007 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer. 
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 71 matching lines @@
     CompositeAnimation(AnimationControllerPrivate* animationController)
         : m_animationController(animationController)
         , m_suspended(false)
     {
     }
 
     void updateTransitions(RenderObject*, RenderStyle* currentStyle, RenderStyle* targetStyle);
     void updateKeyframeAnimations(RenderObject*, RenderStyle* currentStyle, RenderStyle* targetStyle);
     
     typedef HashMap<int, RefPtr<ImplicitAnimation> > CSSPropertyTransitionsMap;
-    typedef HashMap<AtomicStringImpl*, RefPtr<KeyframeAnimation> >  AnimationNameMap;
+    typedef HashMap<StringImpl*, RefPtr<KeyframeAnimation> >  AnimationNameMap;
 
     AnimationControllerPrivate* m_animationController;
     CSSPropertyTransitionsMap m_transitions;
     AnimationNameMap m_keyframeAnimations;
-    Vector<AtomicStringImpl*> m_keyframeAnimationOrderMap;
+    Vector<StringImpl*> m_keyframeAnimationOrderMap;
     bool m_suspended;
 };
 
 } // namespace WebCore
 
 #endif // CompositeAnimation_h