Rename the aura_shell namespace to ash

ash/launcher/tabbed_launcher_button.cc

 // 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 "ash/launcher/tabbed_launcher_button.h"
 
 #include <algorithm>
 
 #include "ash/launcher/launcher_button_host.h"
 #include "grit/ui_resources.h"
 #include "ui/base/animation/multi_animation.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/insets.h"
 
-namespace aura_shell {
+namespace ash {
 namespace internal {
 
 // The images drawn inside the background tab are drawn at this offset from
 // the edge.
 const int kBgImageContentInset = 12;
 
 // Padding between each of the images.
 const int kImagePadding = 8;
 
 // Insets used in painting the background if it's rendered bigger than the size
@@ skipping 158 matching lines @@
     int hot_id) {
   ImageSet* set = new ImageSet;
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   set->normal_image = new SkBitmap(*rb.GetImageNamed(normal_id).ToSkBitmap());
   set->pushed_image = new SkBitmap(*rb.GetImageNamed(pushed_id).ToSkBitmap());
   set->hot_image = new SkBitmap(*rb.GetImageNamed(hot_id).ToSkBitmap());
   return set;
 }
 
 }  // namespace internal
-}  // namespace aura_shell
+}  // namespace ash