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

ui/base/animation/animation.h

Index: ui/base/animation/animation.h
===================================================================
--- ui/base/animation/animation.h	(revision 0)
+++ ui/base/animation/animation.h	(working copy)
@@ -1,19 +1,21 @@
-// 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_H_
-#define APP_ANIMATION_H_
+#ifndef UI_BASE_ANIMATION_ANIMATION_H_
+#define UI_BASE_ANIMATION_ANIMATION_H_
 #pragma once
 
-#include "app/animation_container_element.h"
 #include "base/ref_counted.h"
 #include "base/time.h"
+#include "ui/base/animation/animation_container_element.h"
 
 namespace gfx {
 class Rect;
 }
 
+namespace ui {
+
 class AnimationContainer;
 class AnimationDelegate;
 
@@ -102,4 +104,6 @@
   DISALLOW_COPY_AND_ASSIGN(Animation);
 };
 
-#endif  // APP_ANIMATION_H_
+}  // namespace ui
+
+#endif  // UI_BASE_ANIMATION_ANIMATION_H_