Fix issues with supervised user recreation

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 OptionsPage = options.OptionsPage;
   var ArrayDataModel = cr.ui.ArrayDataModel;
 
   /**
    * ManageProfileOverlay class
@@ skipping 397 matching lines @@
     showDeleteDialog_: function(profileInfo) {
       if (BrowserOptions.getCurrentProfile().isManaged)
         return;
 
       ManageProfileOverlay.setProfileInfo(profileInfo, 'manage');
       $('manage-profile-overlay-create').hidden = true;
       $('manage-profile-overlay-manage').hidden = true;
       $('manage-profile-overlay-delete').hidden = false;
       $('delete-profile-message').textContent =
           loadTimeData.getStringF('deleteProfileMessage', profileInfo.name);
-      $('delete-profile-message').style.backgroundImage = 'url("' +
-          profileInfo.iconURL + '")';
+      $('delete-profile-message').style.backgroundImage =
+          imageset(profileInfo.iconURL + '@scalefactorx');
       $('delete-managed-profile-addendum').hidden = !profileInfo.isManaged;
 
       // Because this dialog isn't useful when refreshing or as part of the
       // history, don't create a history entry for it when showing.
       OptionsPage.showPageByName('manageProfile', false);
     },
 
     /**
      * Display the "Create Profile" dialog.
      * @private
@@ skipping 269 matching lines @@
       return instance[name + '_'].apply(instance, arguments);
     };
   });
 
   // Export
   return {
     ManageProfileOverlay: ManageProfileOverlay,
     CreateProfileOverlay: CreateProfileOverlay,
   };
 });