The consumer management enroll and unenroll buttons should only be visible to the device owner.

chrome/browser/resources/options/chromeos/consumer_management_overlay.js

 // Copyright 2014 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;
 
   /**
    * ConsumerManagementOverlay class
    * Dialog that allows users to enroll/unenroll consumer management service.
    * @extends {SettingsDialog}
    * @constructor
    */
   function ConsumerManagementOverlay() {
     OptionsPage.call(
         this, 'consumer-management-overlay',
         loadTimeData.getString('consumerManagementOverlayTabTitle'),
         'consumer-management-overlay');
 
+    var isEnrolled = loadTimeData.getBoolean('consumerManagementEnrolled');
+    $('unenroll-content').hidden = !($('enroll-content').hidden = isEnrolled);

[bartfab (slow), 2014/07/23 19:27:13]

This line is doing too much at once. Especially the second = looks like a
mistyped == until you look at it more carefully. How about splitting it into two
more palatable lines:

$('enroll-content').hidden = isEnrolled;
$('unenroll-content').hidden = !isEnrolled;

[davidyu, 2014/07/24 04:28:30]

I was asked to write it this way by the previous reviewer. I also think that
having two separated lines is more readable. Done.

+
     $('consumer-management-overlay-enroll').onclick = function(event) {
       chrome.send('enrollConsumerManagement');
       OptionsPage.closeOverlay();
     };
     $('consumer-management-overlay-unenroll').onclick = function(event) {
       chrome.send('unenrollConsumerManagement');
       OptionsPage.closeOverlay();
     };
     $('consumer-management-overlay-enroll-cancel').onclick = function(event) {
       OptionsPage.closeOverlay();
     };
     $('consumer-management-overlay-unenroll-cancel').onclick = function(event) {
       OptionsPage.closeOverlay();
     };
   }
 
   cr.addSingletonGetter(ConsumerManagementOverlay);
 
   ConsumerManagementOverlay.prototype = {
     __proto__: OptionsPage.prototype,
   };
 
-  /**
-   * Shows enrollment or unenrollment content based on the enrollment status.
-   * @param {boolean} isEnrolled Whether the device is enrolled.
-   */
-  ConsumerManagementOverlay.setEnrollmentStatus = function(isEnrolled) {
-    $('unenroll-content').hidden = !($('enroll-content').hidden = isEnrolled);
-  };
-
   // Export
   return {
     ConsumerManagementOverlay: ConsumerManagementOverlay
   };
 });