Eliminate ash::internal namespace

ash/system/chromeos/managed/tray_locally_managed_user.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_CHROMEOS_LOCALLY_MANAGED_TRAY_LOCALLY_MANAGED_USER_H
 #define ASH_SYSTEM_CHROMEOS_LOCALLY_MANAGED_TRAY_LOCALLY_MANAGED_USER_H
 
 #include "ash/ash_export.h"
 #include "ash/system/tray/system_tray_item.h"
 #include "ash/system/tray/view_click_listener.h"
 #include "base/strings/string16.h"
 
 namespace ash {
+class LabelTrayView;
 class SystemTray;
 
-namespace internal {
-
-class LabelTrayView;
-
 class ASH_EXPORT TrayLocallyManagedUser : public SystemTrayItem,
                                           public ViewClickListener {
  public:
   explicit TrayLocallyManagedUser(SystemTray* system_tray);
   virtual ~TrayLocallyManagedUser();
 
   // If message is not empty updates content of default view, otherwise hides
   // tray items.
   void UpdateMessage();
 
@@ skipping 12 matching lines @@
 
   void CreateOrUpdateNotification(const base::string16& new_message);
 
   LabelTrayView* tray_view_;
   // Previous login status to avoid showing notification upon unlock.
   user::LoginStatus status_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayLocallyManagedUser);
 };
 
-} // namespace internal
 } // namespace ash
 
 #endif  // ASH_SYSTEM_CHROMEOS_LOCALLY_MANAGED_TRAY_LOCALLY_MANAGED_USER_H