Settings: Users: Provide correct email in API

chrome/browser/resources/settings/people_page/user_list.js

 // Copyright 2015 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.
 
 /**
  * @fileoverview
  * 'settings-user-list' shows a list of users whitelisted on this Chrome OS
  * device.
  *
  * Example:
@@ skipping 100 matching lines @@
    */
   getProfilePictureUrl_: function(user) {
     return 'chrome://userimage/' + user.email + '?id=' + Date.now();
   },
 
   /**
    * @param {chrome.usersPrivate.User} user
    * @private
    */
   shouldShowEmail_: function(user) {
-    return !user.isSupervised && user.name != user.email;
+    return !user.isSupervised && user.name != user.displayEmail;
   },
 });