Revert 154457 - Switch from SignedSettings to DeviceSettingsService.

chrome/browser/chromeos/kiosk_mode/kiosk_mode_idle_logout_unittest.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 "chrome/browser/chromeos/kiosk_mode/kiosk_mode_idle_logout.h"
 
 #include "ash/test/ash_test_base.h"
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/synchronization/waitable_event.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
-#include "chrome/browser/chromeos/settings/device_settings_test_helper.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::BrowserThread;
 
@@ skipping 26 matching lines @@
   }
 
   bool PowerManagerObserverRegistered() {
     chromeos::PowerManagerClient* power_manager =
         chromeos::DBusThreadManager::Get()->GetPowerManagerClient();
     return power_manager->HasObserver(idle_logout_);
   }
 
   content::TestBrowserThread ui_thread_;
 
-  ScopedDeviceSettingsTestHelper device_settings_test_helper_;
-
   KioskModeIdleLogout* idle_logout_;
   content::NotificationRegistrar registrar_;
 };
 
 TEST_F(KioskModeIdleLogoutTest, CheckObserversBeforeUserLogin) {
   EXPECT_TRUE(LoginUserObserverRegistered());
   EXPECT_FALSE(PowerManagerObserverRegistered());
 }
 
 TEST_F(KioskModeIdleLogoutTest, CheckObserversAfterUserLogin) {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_LOGIN_USER_CHANGED,
       content::Source<UserManager>(UserManager::Get()),
       // Ideally this should be the user logged in, but since we won't really be
       // checking for the current logged in user in our observer anyway, giving
       // NoDetails here is fine.
       content::NotificationService::NoDetails());
 
   RunAllPendingInMessageLoop();
   EXPECT_FALSE(LoginUserObserverRegistered());
   EXPECT_TRUE(PowerManagerObserverRegistered());
 }
 
 }  // namespace chromeos