views: Switch Checkbox over to LabelButton.

ash/system/chromeos/settings/tray_settings.cc

 // 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.
 
 #include "ash/system/chromeos/settings/tray_settings.h"
 
 #include "ash/shell.h"
 #include "ash/system/chromeos/power/power_status_view.h"
 #include "ash/system/tray/actionable_view.h"
 #include "ash/system/tray/fixed_sized_image_view.h"
@@ skipping 107 matching lines @@
   ash::internal::PowerStatusView* power_status_view_;
 
   DISALLOW_COPY_AND_ASSIGN(SettingsDefaultView);
  };
 
 }  // namespace tray
 
 TraySettings::TraySettings(SystemTray* system_tray)
     : SystemTrayItem(system_tray),
       default_view_(NULL) {
-  chromeos::PowerManagerHandler::Get()->AddObserver(this);
+//  chromeos::PowerManagerHandler::Get()->AddObserver(this);
 }
 
 TraySettings::~TraySettings() {
   if (chromeos::PowerManagerHandler::IsInitialized())
     chromeos::PowerManagerHandler::Get()->RemoveObserver(this);
 }
 
 views::View* TraySettings::CreateTrayView(user::LoginStatus status) {
   return NULL;
 }
@@ skipping 29 matching lines @@
 }
 
 void TraySettings::OnPowerStatusChanged(
     const chromeos::PowerSupplyStatus& status) {
   if (default_view_)
     default_view_->UpdatePowerStatus(status);
 }
 
 }  // namespace internal
 }  // namespace ash