Rename the aura_shell namespace to ash

ash/ash_switches.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/ash_switches.h"
 
 #include <string>
 
 #include "base/command_line.h"
 
-namespace aura_shell {
+namespace ash {
 namespace switches {
 
 // Avoid drawing drop shadows under windows.
 const char kAuraNoShadows[] = "aura-no-shadows";
 
 // Use Aura-style translucent window frame.
 const char kAuraTranslucentFrames[] = "aura-translucent-frames";
 
 // Use views-based app list.
 const char kAuraViewsAppList[] = "aura-views-applist";
@@ skipping 12 matching lines @@
 // Use Aura-style workspace window dragging and sizing.
 const char kAuraWorkspaceManager[] = "aura-workspace-manager";
 
 bool IsAuraWindowModeCompact() {
   std::string mode = CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
     switches::kAuraWindowMode);
   return mode == switches::kAuraWindowModeCompact;
 }
 
 }  // namespace switches
-}  // namespace aura_shell
+}  // namespace ash