Rename the aura_shell namespace to ash

ash/wm/shadow_controller.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/shadow_controller.h"
 
 #include <utility>
 
 #include "ash/ash_switches.h"
 #include "ash/wm/shadow.h"
 #include "ash/wm/shadow_types.h"
 #include "ash/wm/window_properties.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 
 using std::make_pair;
 
-namespace aura_shell {
+namespace ash {
 namespace internal {
 
 namespace {
 
 ShadowType GetShadowTypeFromWindowType(aura::Window* window) {
   switch (window->type()) {
     case aura::client::WINDOW_TYPE_NORMAL:
       return CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kAuraTranslucentFrames) ?
               SHADOW_TYPE_NONE : SHADOW_TYPE_RECTANGULAR;
@@ skipping 76 matching lines @@
   linked_ptr<Shadow> shadow(new Shadow());
   window_shadows_.insert(make_pair(window, shadow));
 
   shadow->Init();
   shadow->SetContentBounds(gfx::Rect(window->bounds().size()));
   shadow->layer()->SetVisible(ShouldShowShadowForWindow(window));
   window->layer()->Add(shadow->layer());
 }
 
 }  // namespace internal
-}  // namespace aura_shell
+}  // namespace ash