Initial implementation of stashed message ports, blink side

Source/modules/serviceworkers/ServiceWorkerGlobalScope.idl

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 22 matching lines @@
 [
     Exposed=ServiceWorker,
     Global=(Worker,ServiceWorker),
     RuntimeEnabled=ServiceWorker,
     TypeChecking=Interface,
 ] interface ServiceWorkerGlobalScope : WorkerGlobalScope {
 
   readonly attribute Clients clients;
   readonly attribute ServiceWorkerRegistration registration;
 
+  // https://github.com/mkruisselbrink/navigator-connect/blob/gh-pages/docs/api-idea.md#persisted-messageports
+  // TODO(mek): Link to actual spec when this is added there, and decide if this is the right place for this.
+  [RuntimeEnabled=NavigatorConnect] readonly attribute StashedPortCollection ports;
+
   [CallWith=ScriptState, RaisesException] Promise<Response> fetch(RequestInfo input, optional Dictionary init);
 
   [RaisesException] void close();
 
   [CallWith=ScriptState] Promise<void> skipWaiting();
 
   attribute EventHandler onactivate;
   [RuntimeEnabled=ServiceWorkerOnFetch] attribute EventHandler onfetch;
   attribute EventHandler oninstall;
   attribute EventHandler onmessage;
 };