Implement new mock for user options page per chromium-os:5028

chrome/browser/resources/options/chromeos_accounts_add_user_overlay.js

-// Copyright (c) 2010 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.
-
-///////////////////////////////////////////////////////////////////////////////
-// AddUserOverlay class:
-
-/**
- * Encapsulated handling of ChromeOS accounts add user overlay page.
- * @constructor
- */
-function AddUserOverlay(model) {
-  OptionsPage.call(this, 'addUserOverlay', localStrings.getString('add_user'),
-                   'addUserOverlayPage');
-}
-
-AddUserOverlay.getInstance = function() {
-  if (!AddUserOverlay.instance_) {
-    AddUserOverlay.instance_ = new AddUserOverlay(null);
-  }
-  return AddUserOverlay.instance_;
-};
-
-AddUserOverlay.prototype = {
-  // Inherit AddUserOverlay from OptionsPage.
-  __proto__: OptionsPage.prototype,
-
-  /**
-   * Initializes AddUserOverlay page.
-   * Calls base class implementation to starts preference initialization.
-   */
-  initializePage: function() {
-    // Call base class implementation to starts preference initialization.
-    OptionsPage.prototype.initializePage.call(this);
-
-    // Set up the page.
-    $('addUserOkButton').onclick = function(e) {
-      var newUserEmail = $('userEmailEdit').value;
-      if (newUserEmail)
-        userList.addUser({'email': newUserEmail});
-
-      OptionsPage.clearOverlays();
-    };
-
-    $('addUserCancelButton').onclick = function(e) {
-      OptionsPage.clearOverlays();
-    };
-
-    this.addEventListener('visibleChange',
-                          cr.bind(this.handleVisibleChange_, this));
-  },
-
-  /**
-   * Handler for OptionsPage's visible property change event.
-   * @param {Event} e Property change event.
-   */
-  handleVisibleChange_: function() {
-    $('userEmailEdit').focus();
-  }
-};