Issue 4659 - Incorporate element hiding emulation filters

include.preload.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 412 matching lines @@
     RealWebSocket.prototype.constructor = WebSocket;
   }, eventName);
 }
 
 function ElemHide()
 {
   this.shadow = this.createShadowTree();
   this.style = null;
   this.tracer = null;
 
-  this.propertyFilters = new CSSPropertyFilters(
+  this.elemHideEmulation = new ElemHideEmulation(
     window,
     function(callback)
     {
       ext.backgroundPage.sendMessage({
         type: "filters.get",
-        what: "cssproperties"
+        what: "elemhideemulation"
       }, callback);
     },
     this.addSelectors.bind(this)
   );
 }
 ElemHide.prototype = {
   selectorGroupSize: 200,
 
   createShadowTree: function()
   {
@@ skipping 87 matching lines @@
     {
       var selector = selectors.slice(i, i + this.selectorGroupSize).join(", ");
       this.style.sheet.insertRule(selector + "{display: none !important;}",
                                   this.style.sheet.cssRules.length);
     }
   },
 
   apply: function()
   {
     var selectors = null;
-    var propertyFiltersLoaded = false;
+    var elemHideEmulationLoaded = false;
 
     var checkLoaded = function()
     {
-      if (!selectors || !propertyFiltersLoaded)
+      if (!selectors || !elemHideEmulationLoaded)
         return;
 
       if (this.tracer)
         this.tracer.disconnect();
       this.tracer = null;
 
       if (this.style && this.style.parentElement)
         this.style.parentElement.removeChild(this.style);
       this.style = null;
 
       this.addSelectors(selectors.selectors);
-      this.propertyFilters.apply();
+      this.elemHideEmulation.apply();
 
       if (selectors.trace)
         this.tracer = new ElementHidingTracer(selectors.selectors);
     }.bind(this);
 
     ext.backgroundPage.sendMessage({type: "get-selectors"}, function(response)
     {
       selectors = response;
       checkLoaded();
     });
 
-    this.propertyFilters.load(function()
+    this.elemHideEmulation.load(function()
     {
-      propertyFiltersLoaded = true;
+      elemHideEmulationLoaded = true;
       checkLoaded();
     });
   }
 };
 
 if (document instanceof HTMLDocument)
 {
   checkSitekey();
   wrapWebSocket();
 
   var elemhide = new ElemHide();
   elemhide.apply();
 
   document.addEventListener("error", function(event)
   {
     checkCollapse(event.target);
   }, true);
 
   document.addEventListener("load", function(event)
   {
     var element = event.target;
     if (/^i?frame$/.test(element.localName))
       checkCollapse(element);
   }, true);
 }