Issue 4777 - Add support for Gradle build

adblockplussbrowser/src/org/adblockplus/sbrowser/contentblocker/engine/Engine.java

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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 759 matching lines @@
       Log.d(TAG, headers.toString());
       this.downloader.enqueueDownload(this.createDownloadURL(sub), sub.getId(), headers);
     }
   }
 
   public void connectivityChanged()
   {
     this.downloader.connectivityChanged();
   }
 }