Issue 343 - Fix element collapsing in Chrome 35

include.preload.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 80 matching lines @@
         url: url,
         mediatype: typeMap[tag]
       },
 
       function(response)
       {
         if (response && target.parentNode)
         {
           // <frame> cannot be removed, doing that will mess up the frameset
           if (tag == "frame")
-            target.style.setProperty("visibility", "hidden", "!important");
+            target.style.setProperty("visibility", "hidden", "important");
           else
-            target.style.setProperty("display", "none", "!important");
+            target.style.setProperty("display", "none", "important");
         }
       }
     );
   }
 }
 
 function init()
 {
   // Make sure this is really an HTML page, as Chrome runs these scripts on just about everything
   if (!(document.documentElement instanceof HTMLElement))
     return;
 
   document.addEventListener("error", checkCollapse, true);
   document.addEventListener("load", checkCollapse, true);
 
   var attr = document.documentElement.getAttribute("data-adblockkey");
   if (attr)
     ext.backgroundPage.sendMessage({type: "add-key-exception", token: attr});
 
   ext.backgroundPage.sendMessage({type: "get-selectors"}, setElemhideCSSRules);
 }
 
 // In Chrome 18 the document might not be initialized yet
 if (document.documentElement)
   init();
 else
   window.setTimeout(init, 0);