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

ui/base/animation/tween.cc

-// 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/tween.h"
+#include "ui/base/animation/tween.h"
 
 #include <math.h>
 
 #if defined(OS_WIN)
 #include <float.h>
 #endif
 
 #include "base/logging.h"
 #include "gfx/rect.h"
 
+namespace ui {
+
 // static
 double Tween::CalculateValue(Tween::Type type, double state) {
   DCHECK_GE(state, 0);
   DCHECK_LE(state, 1);
 
   switch (type) {
     case EASE_IN:
       return pow(state, 2);
 
     case EASE_IN_OUT:
@@ skipping 47 matching lines @@
 gfx::Rect Tween::ValueBetween(double value,
                               const gfx::Rect& start_bounds,
                               const gfx::Rect& target_bounds) {
   return gfx::Rect(ValueBetween(value, start_bounds.x(), target_bounds.x()),
                    ValueBetween(value, start_bounds.y(), target_bounds.y()),
                    ValueBetween(value, start_bounds.width(),
                                 target_bounds.width()),
                    ValueBetween(value, start_bounds.height(),
                                 target_bounds.height()));
 }
+
+}  // namespace ui