Issue 1770 - Don't use shadow DOM on docs.google.com, fixing printing there

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 142 matching lines @@
 }
 
 function init(document)
 {
   // Use Shadow DOM if available to don't mess with web pages that rely on
   // the order of their own <style> tags (#309).
   //
   // However, creating a shadow root breaks running CSS transitions. So we
   // have to create the shadow root before transistions might start (#452).
   //
-  // Also, we can't use shadow DOM on Google Docs, since it breaks printing there (#1770).

[Wladimir Palant, 2015/01/13 07:30:27]

Nit: Please wrap that long comment and keep line length below 80 characters.

[Sebastian Noack, 2015/01/13 12:32:21]

Done.

+  // Also, we can't use shadow DOM on Google Docs, since it breaks printing
+  // there (#1770).
   var shadow = null;
   if ("createShadowRoot" in document.documentElement && document.domain != "docs.google.com")
   {
     shadow = document.documentElement.createShadowRoot();
     shadow.appendChild(document.createElement("shadow"));
   }
 
   // Sets the currently used CSS rules for elemhide filters
   var setElemhideCSSRules = function(selectors)
   {
@@ skipping 67 matching lines @@
   }, true);
 
   ext.backgroundPage.sendMessage({type: "get-selectors"}, setElemhideCSSRules);
 }
 
 if (document instanceof HTMLDocument)
 {
   checkSitekey();
   init(document);
 }