Issue 6564 - Replace desc and extend with __proto__

lib/filterNotifier.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
 /**
  * @fileOverview This component manages listeners and calls them to distributes
  * messages about filter changes.
  */
 
 const {EventEmitter} = require("./events");
-const {desc} = require("./coreUtils");
 
 const CATCH_ALL = "__all";
 
 /**
  * @callback FilterNotifierCatchAllListener
  * @param {string} action
  * @param {Subscription|Filter} item
  * @param {...*} additionalInfo
  */
 
 /**
  * This class allows registering and triggering listeners for filter events.
  * @class
  */
-exports.FilterNotifier = Object.create(new EventEmitter(), desc({
+exports.FilterNotifier = {
+  __proto__: new EventEmitter(),
+
   /**
    * Adds a listener
    *
    * @deprecated use FilterNotifier.on(action, callback)
    * @param {FilterNotifierCatchAllListener} listener
    */
   addListener(listener)
   {
     let listeners = this._listeners.get(CATCH_ALL);
     if (!listeners || listeners.indexOf(listener) == -1)
@@ skipping 24 matching lines @@
    * @param {*} param1
    * @param {*} param2
    * @param {*} param3
    * @deprecated use FilterNotifier.emit(action)
    */
   triggerListeners(action, item, param1, param2, param3)
   {
     this.emit(action, item, param1, param2, param3);
     this.emit(CATCH_ALL, action, item, param1, param2, param3);
   }
-}));
+};