Use event init dictionaries in modules/{notifications,push_messaging,serviceworkers}

Source/modules/notifications/NotificationEvent.idl

Index: Source/modules/notifications/NotificationEvent.idl
diff --git a/Source/modules/notifications/NotificationEvent.idl b/Source/modules/notifications/NotificationEvent.idl
index 33903691ec6e13098ad5137358aa0973819dbff2..933b5e567e34a438d76f3fff2be67933028475a7 100644
--- a/Source/modules/notifications/NotificationEvent.idl
+++ b/Source/modules/notifications/NotificationEvent.idl
@@ -5,10 +5,10 @@
 // https://notifications.spec.whatwg.org/#service-worker-api
 
 [
-    EventConstructor,
     Exposed=ServiceWorker,
     RuntimeEnabled=ServiceWorkerNotifications,
     TypeChecking=Interface,
+    Constructor(DOMString type, optional NotificationEventInit eventInitDict),

[Peter Beverloo, 2014/12/05 15:48:33]

nit: Many new IDL files are trying to keep the list of interface-level
annotations ordered by alphabet, is there any reason for moving Constructor() to
be the last annotation?

[bashi, 2014/12/08 23:39:29]

Ah, I didn't know that. Done. Thanks!

 ] interface NotificationEvent : ExtendableEvent {
     readonly attribute Notification notification;
 };