Move CommandLine to base namespace.

ash/shell.h

 // Copyright (c) 2012 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_SHELL_H_
 #define ASH_SHELL_H_
 
 #include <utility>
 #include <vector>
 
@@ skipping 10 matching lines @@
 #include "base/observer_list.h"
 #include "ui/aura/client/activation_change_observer.h"
 #include "ui/aura/window.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/events/event_target.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/size.h"
 #include "ui/wm/core/cursor_manager.h"
 
-class CommandLine;
-
 namespace app_list {
 class AppListView;
 }
 namespace aura {
 class EventFilter;
 class RootWindow;
 class Window;
 namespace client {
 class ActivationClient;
 class FocusClient;
@@ skipping 701 matching lines @@
 
   // Injected content::GPUDataManager support.
   scoped_ptr<GPUSupport> gpu_support_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_