Use safari.extension.settings instead of localStorage and WebSQL

chrome/ext/background.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 331 matching lines @@
           {
             if (frames[frameId].url == sender.url)
               return frames[frameId].parent;
           }
 
           return frames[0];
         }
       }
     };
   });
+
+
+  /* Storage */
+
+  ext.storage = localStorage;
 })();