Add bluetooth callbacks for fetching paired devices and stopping device discovery.

chrome/browser/resources/options2/advanced_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.define('options', function() {
 
   var OptionsPage = options.OptionsPage;
 
   //
   // AdvancedOptions class
@@ skipping 411 matching lines @@
    */
   AdvancedOptions.setBluetoothState = function(checked) {
     $('enable-bluetooth').checked = checked;
     $('bluetooth-paired-devices-list').parentNode.hidden = !checked;
     $('bluetooth-add-device').hidden = !checked;
     $('bluetooth-reconnect-device').hidden = !checked;
     // Flush list of previously discovered devices if bluetooth is turned off.
     if (!checked) {
       $('bluetooth-paired-devices-list').clear();
       $('bluetooth-unpaired-devices-list').clear();
+    } else {
+      chrome.send('getPairedBluetoothDevices');
     }
   }
 
   /**
    * Adds an element to the list of available bluetooth devices. If an element
    * with a matching address is found, the existing element is updated.
    * @param {{name: string,
    *          address: string,
    *          icon: string,
    *          paired: boolean,
@@ skipping 17 matching lines @@
     if (device.pairing)
       BluetoothPairing.showDialog(device);
   };
 
   // Export
   return {
     AdvancedOptions: AdvancedOptions
   };
 
 });