Fix a "managedUser" reference that was re-renamed.

chrome/browser/resources/options/manage_profile_overlay.js

 // 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.
 
 cr.define('options', function() {
   var Page = cr.ui.pageManager.Page;
   var PageManager = cr.ui.pageManager.PageManager;
   var ArrayDataModel = cr.ui.ArrayDataModel;
 
   /**
@@ skipping 99 matching lines @@
           function(event) {
         PageManager.closeOverlay();
         SyncSetupOverlay.showSetupUI();
       };
 
       $('import-existing-supervised-user-link').onclick = function(event) {
         // Hide the import button to trigger a cursor update. The import button
         // is shown again when the import overlay loads. TODO(akuegel): Remove
         // this temporary fix when crbug/246304 is resolved.
         $('import-existing-supervised-user-link').hidden = true;
-        PageManager.showPageByName('managedUserImport');
+        PageManager.showPageByName('supervisedUserImport');
       };
     },
 
     /** @override */
     didShowPage: function() {
       chrome.send('requestDefaultProfileIcons', ['manage']);
 
       // Just ignore the manage profile dialog on Chrome OS, they use /accounts.
       if (!cr.isChromeOS && window.location.pathname == '/manageProfile')
         ManageProfileOverlay.getInstance().prepareForManageDialog_();
@@ skipping 727 matching lines @@
       return instance[name + '_'].apply(instance, arguments);
     };
   });
 
   // Export
   return {
     ManageProfileOverlay: ManageProfileOverlay,
     CreateProfileOverlay: CreateProfileOverlay,
   };
 });