Add IPC stubs between browser and ServiceWorker's worker context in the child process

content/renderer/service_worker/embedded_worker_dispatcher.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/service_worker/embedded_worker_dispatcher.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/child/child_process.h"
@@ skipping 35 matching lines @@
   IPC_BEGIN_MESSAGE_MAP(EmbeddedWorkerDispatcher, message)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_StartWorker, OnStartWorker)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_TerminateWorker, OnTerminateWorker)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void EmbeddedWorkerDispatcher::WorkerContextDestroyed(
     int embedded_worker_id) {
+  RenderThreadImpl::current()->thread_safe_sender()->Send(
+      new ServiceWorkerHostMsg_WorkerStopped(embedded_worker_id));
   workers_.Remove(embedded_worker_id);
 }
 
 void EmbeddedWorkerDispatcher::OnStartWorker(
     int embedded_worker_id,
     int64 service_worker_version_id,
     const GURL& script_url) {
   DCHECK(!workers_.Lookup(embedded_worker_id));
   scoped_ptr<WorkerWrapper> wrapper(new WorkerWrapper(
       blink::WebEmbeddedWorker::create(
@@ skipping 19 matching lines @@
     return;
   }
 
   // This should eventually call WorkerContextDestroyed. (We may need to post
   // a delayed task to forcibly abort the worker context if we find it
   // necessary)
   wrapper->worker()->terminateWorkerContext();
 }
 
 }  // namespace content