Sync event interfaces with the UI Events spec

Source/core/events/KeyboardEvent.idl

Index: Source/core/events/KeyboardEvent.idl
diff --git a/Source/core/events/KeyboardEvent.idl b/Source/core/events/KeyboardEvent.idl
index 2fe31b5f93d00c45b7d6f71541e3edbffcf0eca6..669fa7012d2b096b29ea726c0fcfbef10585bf5b 100644
--- a/Source/core/events/KeyboardEvent.idl
+++ b/Source/core/events/KeyboardEvent.idl
@@ -18,29 +18,30 @@
  * Boston, MA 02110-1301, USA.
  */
 
+// https://w3c.github.io/uievents/#interface-KeyboardEvent
+
 [
     Constructor(DOMString type, optional KeyboardEventInit eventInitDict),
     ConstructorCallWith=ScriptState,
 ] interface KeyboardEvent : UIEvent {
+    // KeyLocationCode
     const unsigned long DOM_KEY_LOCATION_STANDARD = 0x00;
     const unsigned long DOM_KEY_LOCATION_LEFT     = 0x01;
     const unsigned long DOM_KEY_LOCATION_RIGHT    = 0x02;
     const unsigned long DOM_KEY_LOCATION_NUMPAD   = 0x03;
-
-    [RuntimeEnabled=KeyboardEventCode] readonly attribute DOMString     code;
     [RuntimeEnabled=KeyboardEventKey]  readonly attribute DOMString     key;
-    readonly attribute DOMString        keyIdentifier;
+    [RuntimeEnabled=KeyboardEventCode] readonly attribute DOMString     code;
     readonly attribute unsigned long    location;
-    [ImplementedAs=location, DeprecateAs=KeyboardEventKeyLocation] readonly attribute unsigned long keyLocation; // Deprecated.
     readonly attribute boolean          ctrlKey;
     readonly attribute boolean          shiftKey;
     readonly attribute boolean          altKey;
     readonly attribute boolean          metaKey;
     readonly attribute boolean          repeat;
+    // TODO(philipj): readonly attribute boolean isComposing;
+    boolean getModifierState(DOMString keyArg);
 
-    boolean getModifierState(DOMString keyArgument);
-
-    // FIXME: this does not match the version in the DOM spec.
+    // https://w3c.github.io/uievents/#idl-interface-KeyboardEvent-initializers
+    // FIXME: this does not match the version in the spec.
     [CallWith=ScriptState] void initKeyboardEvent([Default=Undefined] optional DOMString type,
                            [Default=Undefined] optional boolean canBubble,
                            [Default=Undefined] optional boolean cancelable,
@@ -52,7 +53,12 @@
                            [Default=Undefined] optional boolean shiftKey,
                            [Default=Undefined] optional boolean metaKey);
 
+    // https://w3c.github.io/uievents/#KeyboardEvent-supplemental-interface
     readonly attribute long charCode;
     readonly attribute long keyCode;
     readonly attribute long which;
+
+    // Non-standard APIs
+    [Measure] readonly attribute DOMString keyIdentifier;
+    [ImplementedAs=location, DeprecateAs=KeyboardEventKeyLocation] readonly attribute unsigned long keyLocation;
 };