[Hotword] Ok Google options disappear if search provider is changed from

chrome/browser/resources/options/browser_options.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.exportPath('options');
 
 /**
  * @typedef {{actionLinkText: (string|undefined),
  *            hasError: (boolean|undefined),
  *            hasUnrecoverableError: (boolean|undefined),
@@ skipping 1178 matching lines @@
      * @private
      */
     showHotwordNoDspSection_: function(opt_error) {
       this.showHotwordCheckboxAndIndicator_(
           'hotword-no-dsp-search',
           'hotword-no-dsp-search-setting-indicator',
           opt_error);
     },
 
     /**
+     * Hides the hotword sections when it is no longer an option
+     * such as when the user selects a non-Google search engine.
+     * @private
+     */
+    hideHotwordSection_: function() {

[Dan Beam, 2014/12/04 20:44:07]

nit:

  setHotwordSectionVisible: function(visible) {

[rpetterson, 2014/12/04 23:20:28]

Done.

+      $('hotword-search').hidden = true;
+      $('hotword-always-on-search').hidden = true;
+      $('hotword-no-dsp-search').hidden = true;
+      $('audio-history').hidden = true;
+    },
+
+    /**
      * Shows or hides the hotword retrain link
      * @param {boolean} visible Whether to show the link.
      * @private
      */
     setHotwordRetrainLinkVisible_: function(visible) {
       $('hotword-retrain-link').hidden = !visible;
     },
 
     /**
      * Event listener for the 'hotword always on search enabled' preference.
@@ skipping 882 matching lines @@
   //Forward public APIs to private implementations.
   cr.makePublic(BrowserOptions, [
     'addBluetoothDevice',
     'deleteCurrentProfile',
     'enableCertificateButton',
     'enableDisplayButton',
     'enableFactoryResetSection',
     'getCurrentProfile',
     'getStartStopSyncButton',
     'hideBluetoothSettings',
+    'hideHotwordSection',
     'notifyInitializationComplete',
     'removeBluetoothDevice',
     'scrollToSection',
     'setAccountPictureManaged',
     'setWallpaperManaged',
     'setAutoOpenFileTypesDisplayed',
     'setBatteryIcon',
     'setBatteryStatusText',
     'setBluetoothState',
     'setCanSetTime',
@@ skipping 78 matching lines @@
       }
       button.textContent = loadTimeData.getString(strId);
     };
   }
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 });