Rename the aura_shell namespace to ash

ash/wm/default_container_layout_manager.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_WM_DEFAULT_CONTAINER_LAYOUT_MANAGER_H_
 #define ASH_WM_DEFAULT_CONTAINER_LAYOUT_MANAGER_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/layout_manager.h"
 #include "ash/ash_export.h"
 
 namespace aura {
 class MouseEvent;
 class Window;
 }
 
 namespace gfx {
 class Rect;
 }
 
-namespace aura_shell {
+namespace ash {
 namespace internal {
 
 class ShowStateController;
 class WorkspaceManager;
 
 // LayoutManager for the default window container.
 class ASH_EXPORT DefaultContainerLayoutManager
     : public aura::LayoutManager {
  public:
   explicit DefaultContainerLayoutManager(WorkspaceManager* workspace_manager);
@@ skipping 30 matching lines @@
  private:
   // Owned by WorkspaceController.
   WorkspaceManager* workspace_manager_;
 
   scoped_ptr<ShowStateController> show_state_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultContainerLayoutManager);
 };
 
 }  // namespace internal
-}  // namespace aura_shell
+}  // namespace ash
 
 #endif  // ASH_WM_DEFAULT_CONTAINER_LAYOUT_MANAGER_H_