Issue 5079 - Turn elemHideEmulation into a CommonJS module

test/browser/elemHideEmulation.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 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 81 matching lines @@
 }
 
 // Will ensure the class ElemHideEmulation is loaded.
 // NOTE: if it never loads, this will probably hang.
 function loadElemHideEmulation()
 {
   if (typeof ElemHideEmulation == "undefined")
   {
     return loadScript(myUrl + "/../../../lib/common.js").then(() =>
     {
-      return loadScript(myUrl + "/../../../chrome/content/elemHideEmulation.js");
+      return loadScript(myUrl + "/../../../lib/content/elemHideEmulation.js");
     }).then(() =>
     {
       return loadElemHideEmulation();
     });
   }
 
   return Promise.resolve();
 }
 
 // Create a new ElemHideEmulation instance with @selectors.
@@ skipping 499 matching lines @@
   let parent = createElementWithStyle("{}");
   let child = createElementWithStyle("{background-color: #000}", parent);
   applyElemHideEmulation(
     ["div:-abp-has(:-abp-properties(background-color: rgb(0, 0, 0)))"]
   ).then(() =>
   {
     expectVisible(test, child);
     expectHidden(test, parent);
   }).catch(unexpectedError.bind(test)).then(() => test.done());
 };