Rename the aura_shell namespace to ash

ash/wm/shelf_layout_manager.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/shelf_layout_manager.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/shell.h"
 #include "base/auto_reset.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/screen_aura.h"
 #include "ui/gfx/compositor/layer.h"
 #include "ui/gfx/compositor/layer_animator.h"
 #include "ui/views/widget/widget.h"
 
-namespace aura_shell {
+namespace ash {
 namespace internal {
 
 namespace {
 
 ui::Layer* GetLayer(views::Widget* widget) {
   return widget->GetNativeView()->layer();
 }
 
 }  // namespace
 
@@ skipping 121 matching lines @@
   if (!animating_)
     return;
   animating_ = false;
   visible_ = !visible_;
   TargetBounds target_bounds;
   CalculateTargetBounds(visible_, &target_bounds);
   aura::RootWindow::GetInstance()->screen()->set_work_area_insets(
       target_bounds.work_area_insets);
 }
 
-}  // internal
-}  // aura_shell
+}  // namespace internal
+}  // namespace ash