Issue 1708 - Integrate first-run page changes in Chrome/Opera/Safari

ext/background.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 43 matching lines @@
     delete: function(page)
     {
       this._delete(page._id);
     }
   };
 
   ext._removeFromAllPageMaps = function(pageId)
   {
     for (var pageMapId in nonEmptyPageMaps)
       nonEmptyPageMaps[pageMapId]._delete(pageId);
+
+    ext.onPageRemoved._dispatch(function(page)
+    {
+      return page._id == pageId;
+    });
   };
+
+  ext.onPageRemoved = new ext._EventTarget();
 })();