adblockplusopera: Update code from ABP for Chrome

background.js

-var ElemHide = require("elemHide").ElemHide;
-var DownloadableSubscription = require("subscriptionClasses").DownloadableSubscription;
-var WhitelistFilter = require("filterClasses").WhitelistFilter;
-var Filter = require("filterClasses").Filter;
+with(require("filterClasses"))
+{
+  this.Filter = Filter;
+  this.WhitelistFilter = WhitelistFilter;
+}
+with(require("subscriptionClasses"))
+{
+  this.Subscription = Subscription;
+  this.DownloadableSubscription = DownloadableSubscription;
+}
 var FilterNotifier = require("filterNotifier").FilterNotifier;
 var FilterStorage = require("filterStorage").FilterStorage;
-var Prefs = require("prefs").Prefs;
+var ElemHide = require("elemHide").ElemHide;
+var defaultMatcher = require("matcher").defaultMatcher;
 var Synchronizer = require("synchronizer").Synchronizer;
-var Subscription = require("subscriptionClasses").Subscription;
-var SpecialSubscription = require("subscriptionClasses").SpecialSubscription;
-var Utils = require("utils").Utils;
 
 var isFirstRun = false;
 FilterNotifier.addListener(function(action)
 {
   if (action == "load")
   {
     importOldData();
     if (!window.localStorage.currentVersion)
     {
       isFirstRun = true;
@@ skipping 213 matching lines @@
       var selectors = ElemHide.getSelectorsForDomain(host, false);
       event.source.postMessage({reqtype: "get-settings-response", selectors: selectors});
       break;
   }
 }, false);
 
 setDefaultOptions();
 createToolbarButton();
 refreshToolbarButton();
 loadI18nMessages();