Add support for KeyboardEvent.location attribute

Source/devtools/front_end/ExtensionServer.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 562 matching lines @@
     _onForwardKeyboardEvent: function(message)
     {
         const Esc = "U+001B";
 
         if (!message.ctrlKey && !message.altKey && !message.metaKey && !/^F\d+$/.test(message.keyIdentifier) && message.keyIdentifier !== Esc)
             return;
         // Fool around closure compiler -- it has its own notion of both KeyboardEvent constructor
         // and initKeyboardEvent methods and overriding these in externs.js does not have effect.
         var event = new window.KeyboardEvent(message.eventType, {
             keyIdentifier: message.keyIdentifier,
-            keyLocation: message.keyLocation,
+            location: message.location,
             ctrlKey: message.ctrlKey,
             altKey: message.altKey,
             shiftKey: message.shiftKey,
             metaKey: message.metaKey
         });
         document.dispatchEvent(event);
     },
 
     _dispatchCallback: function(requestId, port, result)
     {
@@ skipping 307 matching lines @@
 
 WebInspector.extensionServer = new WebInspector.ExtensionServer();
 
 window.addExtension = function(page, name)
 {
     WebInspector.extensionServer._addExtension({
         startPage: page,
         name: name,
     });
 }