Issue 3824 - Move "use strict" into IIFE for compatibility with Kitt

lib/polyfills/url.js

 /*
  * 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-"use strict";
-
 (function(global)
 {
+  "use strict";
+
   var URLProperties = ["href", "protocol", "hostname",
                        "host", "pathname", "search"];
 
   // Chrome <35 and Safari 6 used the non-standard name webkitURL
   var URL = global.URL || global.webkitURL;
 
   // Chrome <32 didn't implement any of those properties
   function hasProperties()
   {
     var dummy = new URL("about:blank");
@@ skipping 24 matching lines @@
       for (var i = 0; i < URLProperties.length; i++)
       {
         var prop = URLProperties[i];
         this[prop] = anchor[prop];
       }
     };
   }
 
   global.URL = URL;
 })(this);