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

chrome/browser/ui/ash/multi_user/multi_user_context_menu_chromeos.cc

 // Copyright 2013 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/ash/multi_user/multi_user_context_menu.h"
 
 #include "ash/multi_profile_uma.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "base/bind.h"
@@ skipping 111 matching lines @@
               ->session_state_delegate()
               ->GetUserInfo(IDC_VISIT_DESKTOP_OF_LRU_USER_2 == command_id ? 1
                                                                           : 2)
               ->GetUserID();
       base::Callback<void(bool)> on_accept =
           base::Bind(&OnAcceptTeleportWarning, user_id, window);
 
       // Don't show warning dialog if any logged in user in multi-profiles
       // session dismissed it.
       const chromeos::UserList logged_in_users =
-          chromeos::UserManager::Get()->GetLoggedInUsers();
+          chromeos::GetUserManager()->GetLoggedInUsers();
       for (chromeos::UserList::const_iterator it = logged_in_users.begin();
            it != logged_in_users.end(); ++it) {
         if (multi_user_util::GetProfileFromUserID(
             multi_user_util::GetUserIDFromEmail((*it)->email()))->GetPrefs()->
             GetBoolean(prefs::kMultiProfileWarningShowDismissed)) {
           bool active_user_show_option =
               ProfileManager::GetActiveUserProfile()->
               GetPrefs()->GetBoolean(prefs::kMultiProfileWarningShowDismissed);
           on_accept.Run(active_user_show_option);
           return;
         }
       }
       chromeos::ShowMultiprofilesWarningDialog(on_accept);
       return;
     }
     default:
       NOTREACHED();
   }
 }