Add support for KeyboardEvent.location attribute

Source/core/dom/KeyboardEvent.idl

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 [
     ConstructorTemplate=Event
 ] interface KeyboardEvent : UIEvent {
 
     [InitializedByEventConstructor] readonly attribute DOMString        keyIdentifier;
-    [InitializedByEventConstructor] readonly attribute unsigned long    keyLocation;
+    [InitializedByEventConstructor] readonly attribute unsigned long    location;
     [InitializedByEventConstructor] readonly attribute boolean          ctrlKey;
     [InitializedByEventConstructor] readonly attribute boolean          shiftKey;
     [InitializedByEventConstructor] readonly attribute boolean          altKey;
     [InitializedByEventConstructor] readonly attribute boolean          metaKey;
     readonly attribute boolean          altGraphKey;
 
+    // Deprecated attributes kept to maintain backward compatibility.
+    [ImplementedAs=location, DeprecateAs=KeyboardEventKeyLocation, InitializedByEventConstructor] readonly attribute unsigned long keyLocation;

[haraken, 2013/07/23 09:21:30]

Nit: Shall we write this just below the 'location' attribute?

[do-not-use, 2013/07/23 10:12:04]

Ok, if you prefer. I created a "deprecated" section because others are likely to
be added soon. As mentioned in the changelog, several other attributes don't
match the spec. However, keeping new and deprecated version together is also
fine.

+
     // FIXME: this does not match the version in the DOM spec.
     void initKeyboardEvent([Default=Undefined] optional DOMString type, 
                            [Default=Undefined] optional boolean canBubble, 
                            [Default=Undefined] optional boolean cancelable, 
                            [Default=Undefined] optional Window view, 
                            [Default=Undefined] optional DOMString keyIdentifier,
-                           [Default=Undefined] optional unsigned long keyLocation,
+                           [Default=Undefined] optional unsigned long location,
                            [Default=Undefined] optional boolean ctrlKey,
                            [Default=Undefined] optional boolean altKey,
                            [Default=Undefined] optional boolean shiftKey,
                            [Default=Undefined] optional boolean metaKey,
                            [Default=Undefined] optional boolean altGraphKey);
 };