Issue 3826 - Filter preference change events

lib/messaging.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 19 matching lines @@
 {
   this._eventEmitter = new EventEmitter();
   this._onMessage = this._onMessage.bind(this);
   ext.onMessage.addListener(this._onMessage);
 };
 
 Port.prototype = {
   _onMessage: function(message, sender, sendResponse)
   {
     let async = false;
-    let callbacks = this._eventEmitter._callbacks[message.type];
+    let callbacks = this._eventEmitter._listeners[message.type];
 
     if (callbacks)
     {
       for (let callback of callbacks)
       {
         let response = callback(message, sender);
 
         if (response && typeof response.then == "function")
         {
           response.then(
@@ skipping 74 matching lines @@
 exports.getPort = function(window)
 {
   let port = new Port();
   window.addEventListener("unload", () =>
   {
     port.disconnect();
   });
   return port;
 };