Issue 4592 - Adapt messaging code for the new element hiding emulation filters

messageResponder.js

Index: messageResponder.js
===================================================================
--- a/messageResponder.js
+++ b/messageResponder.js
@@ -20,17 +20,17 @@
   if (!global.ext)
     global.ext = require("ext_background");
 
   var Prefs = require("prefs").Prefs;
   var Utils = require("utils").Utils;
   var FilterStorage = require("filterStorage").FilterStorage;
   var FilterNotifier = require("filterNotifier").FilterNotifier;
   var defaultMatcher = require("matcher").defaultMatcher;
-  var CSSRules = require("cssRules").CSSRules;
+  var ElemHideEmulation = require("elemHideEmulation").ElemHideEmulation;
   var NotificationStorage = require("notification").Notification;
 
   var filterClasses = require("filterClasses");
   var Filter = filterClasses.Filter;
   var BlockingFilter = filterClasses.BlockingFilter;
   var RegExpFilter = filterClasses.RegExpFilter;
   var Synchronizer = require("synchronizer").Synchronizer;
 
@@ -215,32 +215,32 @@
         break;
       case "filters.blocked":
         var filter = defaultMatcher.matchesAny(message.url,
           RegExpFilter.typeMap[message.requestType], message.docDomain,
           message.thirdParty);
         callback(filter instanceof BlockingFilter);
         break;
       case "filters.get":
-        if (message.what == "cssproperties")
+        if (message.what == "elemhideemulation")
         {
           var filters = [];
           var checkWhitelisted = require("whitelisting").checkWhitelisted;
 
           if (Prefs.enabled && !checkWhitelisted(sender.page, sender.frame,
                                 RegExpFilter.typeMap.DOCUMENT |
                                 RegExpFilter.typeMap.ELEMHIDE))
           {
-            filters = CSSRules.getRulesForDomain(sender.frame.url.hostname);
+            var hostname = sender.frame.url.hostname;
+            filters = ElemHideEmulation.getRulesForDomain(hostname);
             filters = filters.map(function(filter)
             {
               return {
-                prefix: filter.selectorPrefix,
-                suffix: filter.selectorSuffix,
-                regexp: filter.regexpString,
+                features: filter.features,
+                selector: filter.selector,
                 text: filter.text
               };
             });
           }
           callback(filters);
           break;
         }