Replace chromeos::UserManager::Get() with chromeos::GetUserManager().

chrome/browser/ui/webui/chromeos/login/error_screen_handler.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/ui/webui/chromeos/login/error_screen_handler.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/time/time.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 186 matching lines @@
           IDR_CONNECTIVITY_DIAGNOSTICS_MANIFEST,
           base::FilePath(extension_misc::kConnectivityDiagnosticsKioskPath));
 
   const extensions::Extension* extension = extension_service->
       GetExtensionById(extension_id, true);
   OpenApplication(AppLaunchParams(profile, extension,
                                   extensions::LAUNCH_CONTAINER_WINDOW,
                                   NEW_WINDOW));
   InitAppSession(profile, extension_id);
 
-  UserManager::Get()->SessionStarted();
+  GetUserManager()->SessionStarted();
 
   LoginDisplayHostImpl::default_host()->Finalize();
 }
 
 void ErrorScreenHandler::HandleConfigureCerts() {
   CertificateManagerDialog* dialog =
       new CertificateManagerDialog(ProfileManager::GetActiveUserProfile(),
                                    NULL,
                                    GetNativeWindow());
   dialog->Show();
@@ skipping 69 matching lines @@
     params.SetString("network", network_);
     params.SetBoolean("guestSigninAllowed", guest_signin_allowed_);
     params.SetBoolean("offlineLoginAllowed", offline_login_allowed_);
     params.SetBoolean("showConnectingIndicator", show_connecting_indicator_);
     Show(parent_screen_, &params);
     show_on_init_ = false;
   }
 }
 
 }  // namespace chromeos