chromeos: Get rid of browser namespace usage in kiosk_mode_idle_logout.*

chrome/browser/chromeos/kiosk_mode/kiosk_mode_idle_logout.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 CHROME_BROWSER_CHROMEOS_KIOSK_MODE_KIOSK_MODE_IDLE_LOGOUT_H_
 #define CHROME_BROWSER_CHROMEOS_KIOSK_MODE_KIOSK_MODE_IDLE_LOGOUT_H_
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "chromeos/dbus/power_manager_client.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
-namespace browser {
-
-// Shows or closes the logout dialog for Kiosk Mode.
-void ShowIdleLogoutDialog();
-void CloseIdleLogoutDialog();
-
-}  // namespace browser
-
 namespace chromeos {
 
 class KioskModeIdleLogout : public PowerManagerClient::Observer,
                             public content::NotificationObserver {
  public:
+  static void Initialize();
+
   KioskModeIdleLogout();
 
+ private:
+  friend class KioskModeIdleLogoutTest;
+
   // Really initialize idle logout when KioskModeHelper is initialized.
   void Setup();
 
-  // NotificationObserver overrides:
+  // Overridden from content::NotificationObserver:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
-  // PowerManagerClient::Observer overrides:
+  // Overridden from PowerManagerClient::Observer:
   virtual void IdleNotify(int64 threshold) OVERRIDE;
   virtual void ActiveNotify() OVERRIDE;
 
- private:
-  friend class KioskModeIdleLogoutTest;
-  content::NotificationRegistrar registrar_;
-
   void SetupIdleNotifications();
   void RequestNextActiveNotification();
   void RequestNextIdleNotification();
 
+  content::NotificationRegistrar registrar_;
+
   DISALLOW_COPY_AND_ASSIGN(KioskModeIdleLogout);
 };
 
-void InitializeKioskModeIdleLogout();
-
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_KIOSK_MODE_KIOSK_MODE_IDLE_LOGOUT_H_