Compile chrome://settings, part 5

chrome/browser/resources/options/hotword_confirm_dialog.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() {
   /** @const */ var ConfirmDialog = options.ConfirmDialog;
   /** @const */ var SettingsDialog = options.SettingsDialog;
   /** @const */ var PageManager = cr.ui.pageManager.PageManager;
 
   /**
    * A dialog that will pop up when the user attempts to set the value of the
    * Boolean |pref| to |true|, asking for confirmation. It will first check for
    * any errors and if any exist, not display the dialog but toggle the
    * indicator. Like its superclass, if the user clicks OK, the new value is
    * committed to Chrome. If the user clicks Cancel or leaves the settings page,
    * the new value is discarded.
    * @constructor
    * @extends {options.ConfirmDialog}
    */
   function HotwordConfirmDialog() {
     ConfirmDialog.call(this,
-                       'hotwordConfim',  // name
-                       loadTimeData.getString('hotwordConfirmOverlayTabTitle'),
-                       'hotword-confirm-overlay',  // pageDivName
-                       $('hotword-confirm-ok'),  // okButton
-                       $('hotword-confirm-cancel'),  // cancelButton
-                       $('hotword-search-enable')['pref'], // pref
-                       $('hotword-search-enable')['metric']); // metric
+        'hotwordConfim',  // name
+        loadTimeData.getString('hotwordConfirmOverlayTabTitle'),
+        'hotword-confirm-overlay',  // pageDivName
+        assertInstanceof($('hotword-confirm-ok'), HTMLButtonElement),
+        assertInstanceof($('hotword-confirm-cancel'), HTMLButtonElement),
+        $('hotword-search-enable')['pref'], // pref
+        $('hotword-search-enable')['metric']); // metric
 
     this.indicator = $('hotword-search-setting-indicator');
   }
 
   HotwordConfirmDialog.prototype = {
     // TODO(dbeam): this class should probably derive SettingsDialog again as it
     // evily duplicates much of ConfirmDialog's functionality, calls methods
     // on SettingsDialog.prototype, and shadows private method names.
     __proto__: ConfirmDialog.prototype,
 
@@ skipping 33 matching lines @@
       this.cancelButton.onclick = this.handleCancel.bind(this);
       Preferences.getInstance().addEventListener(
           this.pref, this.onPrefChanged_.bind(this));
     }
   };
 
   return {
     HotwordConfirmDialog: HotwordConfirmDialog
   };
 });