Eliminate ash::internal namespace

ash/system/status_area_widget.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_SYSTEM_STATUS_AREA_WIDGET_H_
 #define ASH_SYSTEM_STATUS_AREA_WIDGET_H_
 
 #include "ash/ash_export.h"
 #include "ash/shelf/shelf_types.h"
 #include "ash/system/user/login_status.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
-
 class OverviewButtonTray;
 class ShellDelegate;
+class StatusAreaWidgetDelegate;
 class SystemTray;
 class WebNotificationTray;
-
-namespace internal {
-
-class StatusAreaWidgetDelegate;
 #if defined(OS_CHROMEOS)
 class LogoutButtonTray;
 class VirtualKeyboardTray;
 #endif
 
 class ASH_EXPORT StatusAreaWidget : public views::Widget {
  public:
   static const char kNativeViewName[];
 
   explicit StatusAreaWidget(aura::Window* status_container);
@@ skipping 10 matching lines @@
   void SetShelfAlignment(ShelfAlignment alignment);
 
   // Set the visibility of system notifications.
   void SetHideSystemNotifications(bool hide);
 
   // Called by the client when the login status changes. Caches login_status
   // and calls UpdateAfterLoginStatusChange for the system tray and the web
   // notification tray.
   void UpdateAfterLoginStatusChange(user::LoginStatus login_status);
 
-  internal::StatusAreaWidgetDelegate* status_area_widget_delegate() {
+  StatusAreaWidgetDelegate* status_area_widget_delegate() {
     return status_area_widget_delegate_;
   }
   SystemTray* system_tray() { return system_tray_; }
   WebNotificationTray* web_notification_tray() {
     return web_notification_tray_;
   }
   OverviewButtonTray* overview_button_tray() {
     return overview_button_tray_;
   }
 
@@ skipping 13 matching lines @@
  private:
   void AddSystemTray();
   void AddWebNotificationTray();
 #if defined(OS_CHROMEOS)
   void AddLogoutButtonTray();
   void AddVirtualKeyboardTray();
 #endif
   void AddOverviewButtonTray();
 
   // Weak pointers to View classes that are parented to StatusAreaWidget:
-  internal::StatusAreaWidgetDelegate* status_area_widget_delegate_;
+  StatusAreaWidgetDelegate* status_area_widget_delegate_;
   OverviewButtonTray* overview_button_tray_;
   SystemTray* system_tray_;
   WebNotificationTray* web_notification_tray_;
 #if defined(OS_CHROMEOS)
   LogoutButtonTray* logout_button_tray_;
   VirtualKeyboardTray* virtual_keyboard_tray_;
 #endif
   user::LoginStatus login_status_;
 
   DISALLOW_COPY_AND_ASSIGN(StatusAreaWidget);
 };
 
-}  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_STATUS_AREA_WIDGET_H_