Adds the audio history and always on hotwording settings.

chrome/browser/resources/options/browser_options.js

Index: chrome/browser/resources/options/browser_options.js
diff --git a/chrome/browser/resources/options/browser_options.js b/chrome/browser/resources/options/browser_options.js
index d938e469aa6e2ba438bb1ed16df8f11a018424c9..9b74423213258c1b81fd791d5ee19cabba6c0c6a 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -1099,6 +1099,16 @@ cr.define('options', function() {
     },
 
     /**
+     * Activates the Audio History and Always-On Hotword sections from the
+     * System settings page.
+     * @private
+     */
+    showHotwordAlwaysOnSection_: function() {
+      $('hotword-always-on-search').hidden = false;
+      $('audio-logging').hidden = false;
+    },
+
+    /**
      * Event listener for the 'homepage is NTP' preference. Updates the label
      * next to the 'Change' button.
      * @param {Event} event The preference change event.
@@ -1927,6 +1937,7 @@ cr.define('options', function() {
     'showCreateProfileSuccess',
     'showCreateProfileWarning',
     'showHotwordSection',
+    'showHotwordAlwaysOnSection',

[benwells, 2014/08/13 05:57:48]

Nit: I think this should be alphabetical.

[kcarattini, 2014/08/13 06:46:23]

Done.

     'showMouseControls',
     'showSupervisedUserImportError',
     'showSupervisedUserImportSuccess',