Rename the aura_shell namespace to ash

ash/launcher/launcher_types.h

 // 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 ASH_LAUNCHER_LAUNCHER_TYPES_H_
 #define ASH_LAUNCHER_LAUNCHER_TYPES_H_
 #pragma once
 
 #include <vector>
 
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ash/ash_export.h"
 
 namespace aura {
 class Window;
 }
 
-namespace aura_shell {
+namespace ash {
 
 // Type the LauncherItem represents.
 enum ASH_EXPORT LauncherItemType {
   TYPE_TABBED,
   TYPE_APP
 };
 
 // Represents an image in a launcher item of type TYPE_APP.
 struct ASH_EXPORT LauncherTabbedImage {
   LauncherTabbedImage() : user_data(NULL) {}
@@ skipping 26 matching lines @@
 
   // Image to display in the launcher if the item is of type TYPE_APP.
   SkBitmap app_image;
 
   // Image to display in the launcher if the item is of type TYPE_TABBED.
   LauncherTabbedImages tab_images;
 };
 
 typedef std::vector<LauncherItem> LauncherItems;
 
-}  // namespace aura_shell
+}  // namespace ash
 
 #endif  // ASH_LAUNCHER_LAUNCHER_TYPES_H_