Add support for KeyboardEvent.location attribute

Source/core/dom/KeyboardEvent.idl

Index: Source/core/dom/KeyboardEvent.idl
diff --git a/Source/core/dom/KeyboardEvent.idl b/Source/core/dom/KeyboardEvent.idl
index 134cb59c34afe583ffa6370a6385b796b8ca18f0..8b096b8c4a96e4e0030f5d43398e5ddebd2a2404 100644
--- a/Source/core/dom/KeyboardEvent.idl
+++ b/Source/core/dom/KeyboardEvent.idl
@@ -23,20 +23,23 @@
 ] 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,