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

ui/base/animation/slide_animation.cc

Index: ui/base/animation/slide_animation.cc
===================================================================
--- ui/base/animation/slide_animation.cc	(revision 0)
+++ ui/base/animation/slide_animation.cc	(working copy)
@@ -1,11 +1,13 @@
-// 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.
 
-#include "app/slide_animation.h"
+#include "ui/base/animation/slide_animation.h"
 
 #include <math.h>
 
+namespace ui {
+
 // How many frames per second to target.
 static const int kDefaultFramerateHz = 50;
 
@@ -108,3 +110,5 @@
     value_current_ = value_end_;
   }
 }
+
+}  // namespace ui