Eliminate ash::internal namespace

ash/system/chromeos/session/logout_confirmation_controller.h

 // Copyright 2014 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_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
 #define ASH_SYSTEM_CHROMEOS_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
 
 #include "ash/ash_export.h"
 #include "ash/shell_observer.h"
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 
 namespace base {
 class TickClock;
 }
 
 namespace ash {
-namespace internal {
 
 class LogoutConfirmationDialog;
 
 // This class shows a dialog asking the user to confirm or deny logout and
 // terminates the session if the user either confirms or allows the countdown
 // shown in the dialog to expire.
 // It is guaranteed that no more than one confirmation dialog will be visible at
 // any given time. If there are multiple requests to show a confirmation dialog
 // at the same time, the dialog whose countdown expires first is shown.
 class ASH_EXPORT LogoutConfirmationController : public ShellObserver {
@@ skipping 26 matching lines @@
   scoped_ptr<base::TickClock> clock_;
   base::Closure logout_closure_;
 
   base::TimeTicks logout_time_;
   LogoutConfirmationDialog* dialog_;  // Owned by the Views hierarchy.
   base::Timer logout_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(LogoutConfirmationController);
 };
 
-}  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_CHROMEOS_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_