Add disable flag around supervised user import code.

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 278 matching lines @@
      */
     onNameChanged_: function(mode) {
       var newName = $(mode + '-profile-name').value;
       var oldName = this.profileInfo_.name;
 
       // In 'create' mode, the initial name can be the name of an already
       // existing supervised user.
       if (newName == oldName && mode == 'manage') {
         this.hideErrorBubble_(mode);
       } else if (mode == 'create' &&
-                 loadTimeData.getBoolean('allowCreateExistingManagedUsers') &&
+                 !loadTimeData.getBoolean(
+                     'disableCreateExistingManagedUsers') &&
                  $('create-profile-managed').checked) {
         options.ManagedUserListData.requestExistingManagedUsers().then(
             this.receiveExistingManagedUsers_.bind(this),
             this.onSigninError_.bind(this));
       } else {
         this.updateOkButton_(mode);
       }
     },
 
     /**
@@ skipping 250 matching lines @@
 
       var shortcutsEnabled = loadTimeData.getBoolean('profileShortcutsEnabled');
       $('create-shortcut-container').hidden = !shortcutsEnabled;
       $('create-shortcut').checked = shortcutsEnabled;
 
       $('create-profile-name-label').hidden = true;
       $('create-profile-name').hidden = true;
       $('create-profile-ok').disabled = true;
 
       $('create-profile-managed').checked = false;
-      if (loadTimeData.getBoolean('allowCreateExistingManagedUsers')) {
+      if (!loadTimeData.getBoolean('disableCreateExistingManagedUsers')) {
         $('import-existing-managed-user-link').hidden = false;
         $('create-profile-managed').onchange = function() {
           ManageProfileOverlay.getInstance().onNameChanged_('create');
         };
       }
       $('create-profile-managed-signed-in').disabled = true;
       $('create-profile-managed-signed-in').hidden = true;
       $('create-profile-managed-not-signed-in').hidden = true;
     },
 
@@ skipping 194 matching lines @@
       return instance[name + '_'].apply(instance, arguments);
     };
   });
 
   // Export
   return {
     ManageProfileOverlay: ManageProfileOverlay,
     CreateProfileOverlay: CreateProfileOverlay,
   };
 });