Added Safari Support

safari/content.js

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2013 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 48 matching lines @@
               obj.apply(
                 this.getObject(event.message.contextId),
                 this.deserializeSequence(event.message.args)
               );
           }.bind(this));
         }
 
         return {type: "callback", callbackId: callbackId};
       }
 
-      if (typeof obj == "object")
-      if (obj != null)
-      if (obj.constructor != Date)
-      if (obj.constructor != RegExp)
+      if (typeof obj == "object" &&
+          obj != null &&
+          obj.constructor != Date &&
+          obj.constructor != RegExp)
       {
         if (!memo)
           memo = {specs: [], objects: []};
 
         var idx = memo.objects.indexOf(obj);
         if (idx != -1)
           return memo.specs[idx];
 
         var spec = {};
         memo.specs.push(spec);
@@ skipping 209 matching lines @@
   ext.backgroundPage = {
     _eventTarget: safari.self,
     _messageDispatcher: safari.self.tab,
 
     sendMessage: sendMessage,
     getWindow: function() { return proxy.getObject(0); }
   };
 
   ext.onMessage = new MessageEventTarget(safari.self);
 })();