Rename the aura_shell namespace to ash

ash/wm/window_util.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/wm/window_util.h"
 
 #include "ash/wm/activation_controller.h"
 #include "ash/wm/property_util.h"
 #include "ui/aura/client/activation_client.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/gfx/screen.h"
 
-namespace aura_shell {
+namespace ash {
 
 bool IsWindowMaximized(aura::Window* window) {
   return window->GetIntProperty(aura::client::kShowStateKey) ==
       ui::SHOW_STATE_MAXIMIZED;
 }
 
 void ActivateWindow(aura::Window* window) {
   aura::client::GetActivationClient()->ActivateWindow(window);
 }
 
@@ skipping 42 matching lines @@
 bool HasFullscreenWindow(const WindowSet& windows) {
   for (WindowSet::const_iterator i = windows.begin(); i != windows.end(); ++i) {
     if ((*i)->GetIntProperty(aura::client::kShowStateKey)
         == ui::SHOW_STATE_FULLSCREEN) {
       return true;
     }
   }
   return false;
 }
 
-}  // namespace aura_shell
+}  // namespace ash