Rename "managed (mode|user)" to "supervised user" (part 8)

chrome/browser/resources/options/managed_user_learn_more.js

-// Copyright 2013 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;
-
-  /**
-   * ManagedUserLearnMore class.
-   * Encapsulated handling of the 'Learn more...' overlay page.
-   * @constructor
-   * @class
-   */
-  function ManagedUserLearnMoreOverlay() {
-    OptionsPage.call(this, 'managedUserLearnMore',
-                     loadTimeData.getString('managedUserLearnMoreTitle'),
-                     'managed-user-learn-more');
-  };
-
-  cr.addSingletonGetter(ManagedUserLearnMoreOverlay);
-
-  ManagedUserLearnMoreOverlay.prototype = {
-    // Inherit from OptionsPage.
-    __proto__: OptionsPage.prototype,
-
-    /**
-     * Initialize the page.
-     */
-    initializePage: function() {
-      OptionsPage.prototype.initializePage.call(this);
-
-      $('managed-user-learn-more-done').onclick = function(event) {
-        OptionsPage.closeOverlay();
-      };
-    },
-  };
-
-  // Export
-  return {
-    ManagedUserLearnMoreOverlay: ManagedUserLearnMoreOverlay,
-  };
-});