Update IDL to 1847

core/events/MessageEvent.idl

Index: core/events/MessageEvent.idl
diff --git a/core/events/MessageEvent.idl b/core/events/MessageEvent.idl
index c482b082cfb950202291ce261805e40cfdb6ac74..b830e16e46b7b2a277b5afff6a025d4df60c2150 100644
--- a/core/events/MessageEvent.idl
+++ b/core/events/MessageEvent.idl
@@ -29,28 +29,28 @@
     EventConstructor,
     GlobalContext=Window&WorkerGlobalScope,
     RaisesException=Constructor,
+    Custom=Wrap,
 ] interface MessageEvent : Event {
     [InitializedByEventConstructor] readonly attribute DOMString origin;
     [InitializedByEventConstructor] readonly attribute DOMString lastEventId;
     [InitializedByEventConstructor] readonly attribute EventTarget? source; // May be a Window or a MessagePort
     [InitializedByEventConstructor, Custom=Getter] readonly attribute any data;
     [InitializedByEventConstructor] readonly attribute MessagePort[] ports;
-    [Custom] void initMessageEvent([Default=Undefined] optional DOMString typeArg,
+    [Custom, MeasureAs=InitMessageEvent] void initMessageEvent([Default=Undefined] optional DOMString typeArg,
                                    [Default=Undefined] optional boolean canBubbleArg,
                                    [Default=Undefined] optional boolean cancelableArg,
                                    [Default=Undefined] optional any dataArg,
                                    [Default=Undefined] optional DOMString originArg,
                                    [Default=Undefined] optional DOMString lastEventIdArg,
                                    [Default=Undefined] optional Window sourceArg,
-                                   [Default=Undefined] optional Array messagePorts);
+                                   [Default=Undefined] optional MessagePort[] messagePorts);
 
-    [Custom] void webkitInitMessageEvent([Default=Undefined] optional DOMString typeArg,
+    [Custom, MeasureAs=PrefixedInitMessageEvent] void webkitInitMessageEvent([Default=Undefined] optional DOMString typeArg,
                                          [Default=Undefined] optional boolean canBubbleArg,
                                          [Default=Undefined] optional boolean cancelableArg,
                                          [Default=Undefined] optional any dataArg,
                                          [Default=Undefined] optional DOMString originArg,
                                          [Default=Undefined] optional DOMString lastEventIdArg,
                                          [Default=Undefined] optional Window sourceArg,
-                                         [Default=Undefined] optional Array transferables);
+                                         [Default=Undefined] optional MessagePort[] transferables);
 };
-