Rename the aura_shell namespace to ash

ash/wm/compact_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_COMPACT_LAYOUT_MANAGER_H_
 #define ASH_WM_COMPACT_LAYOUT_MANAGER_H_
 #pragma once
 
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/aura/layout_manager.h"
 #include "ui/aura/window_observer.h"
 #include "ash/ash_export.h"
 
 namespace views {
 class Widget;
 }
 
-namespace aura_shell {
+namespace ash {
 namespace internal {
 
 // CompactLayoutManager is an alternate LayoutManager for the container that
 // hosts what the shell considers to be top-level windows. It is used for low
 // resolution screens and keeps the main browser window maximized.
 // It listens for changes to kShowStateKey and resizes the window appropriately.
 class ASH_EXPORT CompactLayoutManager : public aura::LayoutManager,
                                                public aura::WindowObserver {
  public:
   explicit CompactLayoutManager(views::Widget* status_area_widget);
@@ skipping 21 matching lines @@
 
   // Set of windows we're listening to.
   Windows windows_;
 
   // Weak pointer to status area with clock, network, battery, etc. icons.
   views::Widget* status_area_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(CompactLayoutManager);
 };
 
-}  // namespace aura_shell
+}  // namespace ash
 }  // namespace internal
 
 #endif  // ASH_WM_COMPACT_LAYOUT_MANAGER_H_