Move animation code to new ui/base/animation directory....

app/animation_delegate.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef APP_ANIMATION_DELEGATE_H_
 #define APP_ANIMATION_DELEGATE_H_
 #pragma once
 
-class Animation;
+#include "ui/base/animation/animation_delegate.h"
 
-// AnimationDelegate
-//
-//  Implement this interface when you want to receive notifications about the
-//  state of an animation.
-class AnimationDelegate {
- public:
-  // Called when an animation has completed.
-  virtual void AnimationEnded(const Animation* animation) {}
-
-  // Called when an animation has progressed.
-  virtual void AnimationProgressed(const Animation* animation) {}
-
-  // Called when an animation has been canceled.
-  virtual void AnimationCanceled(const Animation* animation) {}
-
- protected:
-  virtual ~AnimationDelegate() {}
-};
+using ui::AnimationDelegate;
+using ui::Animation;
 
 #endif  // APP_ANIMATION_DELEGATE_H_