Issue 2264 - Remove deprecated logic from Utils.runAsync() on Chrome/Opera/Safari

lib/storage/io.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 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 52 matching lines @@
       callback(null);
     }.bind(this));
   },
 
   writeToFile: function(file, data, callback, timeLineID)
   {
     var path = this._getFilePath(file);
     this._setFileContents(path, data.join(this.lineBreak) + this.lineBreak, Date.now());
 
     var Utils = require("utils").Utils;
-    Utils.runAsync(callback, null, null);
+    Utils.runAsync(callback.bind(null, null));
   },
 
   copyFile: function(fromFile, toFile, callback)
   {
     // Simply combine read and write operations
     var data = [];
     this.readFromFile(fromFile, {
       process: function(line)
       {
         if (line !== null)
@@ skipping 36 matching lines @@
     // This needs to use Utils.runAsync(), otherwise FilterStorage might
     // initialize too early - see #337.
     require("utils").Utils.runAsync(callback.bind(null, null, {
       exists: path in ext.storage,
       isDirectory: false,
       isFile: true,
       lastModified: parseInt(ext.storage[path + "/lastModified"], 10) || 0
     }));
   }
 };