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

chrome/browser/signin/signin_error_notifier_ash.cc

 // 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.
 
 #include "chrome/browser/signin/signin_error_notifier_ash.h"
 
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/system/system_notifier.h"
 #include "base/logging.h"
@@ skipping 145 matching lines @@
     return;
 
   if (!error_controller_->HasError()) {
     g_browser_process->notification_ui_manager()->CancelById(notification_id_);
     return;
   }
 
 #if defined(OS_CHROMEOS)
   if (chromeos::UserManager::IsInitialized()) {
     chromeos::UserFlow* user_flow =
-        chromeos::UserManager::Get()->GetCurrentUserFlow();
+        chromeos::GetUserManager()->GetCurrentUserFlow();
 
     // Check whether Chrome OS user flow allows launching browser.
     // Example: Supervised user creation flow which handles token invalidation
     // itself and notifications should be suppressed. http://crbug.com/359045
     if (!user_flow->ShouldLaunchBrowser())
       return;
   }
 #endif
 
   // Add an accept button to sign the user out.
@@ skipping 51 matching lines @@
       return l10n_util::GetStringUTF16(
           IDS_SYNC_UNAVAILABLE_ERROR_BUBBLE_VIEW_MESSAGE);
       break;
 
     // Generic message for "other" errors.
     default:
       return l10n_util::GetStringUTF16(
           IDS_SYNC_OTHER_SIGN_IN_ERROR_BUBBLE_VIEW_MESSAGE);
   }
 }