Issue 653 -Object.defineProperty instead of defineGetter / defineSetter

chrome/content/ui/sidebar.js

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2014 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 67 matching lines @@
     if (params && params.position)
       defaults = params.position;
 
     let wnd = parent.document.documentElement;
     for (let attr in defaults)
       if (!wnd.hasAttribute(attr))
         wnd.setAttribute(attr, defaults[attr]);
   }
 
   let {getBrowser, addBrowserLocationListener} = require("appSupport");
-  window.__defineGetter__("content", function() {return getBrowser(mainWin).contentWindow;});
+  Object.defineProperty(window, "content", { get: () => getBrowser(mainWin).contentWindow });
 
   // Initialize matcher for disabled filters
   reloadDisabledFilters();
   FilterNotifier.addListener(reloadDisabledFilters);
   Prefs.addListener(onPrefChange);
 
   // Activate flasher
   list.addEventListener("select", onSelectionChange, false);
 
   // Initialize data
@@ skipping 1138 matching lines @@
       return {tooltip: this.itemsDummyTooltip};
   },
 
   invalidateItem: function(item)
   {
     let row = this.data.indexOf(item);
     if (row >= 0)
       this.boxObject.invalidateRow(row);
   }
 }