Issue 1644 - Recognize <input type=image> elements with the correct type on Safari

safari/ext/content.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 59 matching lines @@
     var eventName = "error";
 
     switch(event.target.localName)
     {
       case "frame":
       case "iframe":
         type = "sub_frame";
         eventName = "load";
         break;
       case "img":
+      case "input":
         type = "image";
         break;
       case "object":
       case "embed":
         type = "object";
         break;
       case "script":
         type = "script";
         break;
       case "link":
@@ skipping 332 matching lines @@
             messageProxy.handleResponse(event.message);
             break;
           case "proxyCallback":
             backgroundPageProxy.handleCallback(event.message);
             break;
         }
       }
     }
   });
 })();