Chromium-side plumbing for ServiceWorker -> Document postMessage (2/3)

content/renderer/service_worker/embedded_worker_context_client.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_context_client.h"
 
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/pickle.h"
 #include "base/threading/thread_local.h"
 #include "content/child/request_extra_data.h"
 #include "content/child/service_worker/service_worker_network_provider.h"
 #include "content/child/thread_safe_sender.h"
+#include "content/child/webmessageportchannel_impl.h"
 #include "content/child/worker_task_runner.h"
 #include "content/child/worker_thread_task_runner.h"
 #include "content/common/devtools_messages.h"
 #include "content/common/service_worker/embedded_worker_messages.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/public/renderer/document_state.h"
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/service_worker/embedded_worker_dispatcher.h"
 #include "content/renderer/service_worker/service_worker_script_context.h"
 #include "ipc/ipc_message_macros.h"
@@ skipping 255 matching lines @@
   // and ownership is transferred to the DataSource.
   DataSourceExtraData* extra_data = new DataSourceExtraData();
   data_source->setExtraData(extra_data);
   ServiceWorkerNetworkProvider::AttachToDocumentState(
       extra_data, provider.Pass());
 
   // Blink is responsible for deleting the returned object.
   return new WebServiceWorkerNetworkProviderImpl();
 }
 
+void EmbeddedWorkerContextClient::postMessageToClient(
+    int client_id,
+    const blink::WebString& message,
+    blink::WebMessagePortChannelArray* channels) {
+  DCHECK(script_context_);
+  script_context_->PostMessageToDocument(
+      client_id, message,
+      WebMessagePortChannelImpl::ExtractMessagePortIDs(channels));
+}
+
 void EmbeddedWorkerContextClient::OnMessageToWorker(
     int thread_id,
     int embedded_worker_id,
     const IPC::Message& message) {
   if (!script_context_)
     return;
   DCHECK_EQ(embedded_worker_id_, embedded_worker_id);
   script_context_->OnMessageReceived(message);
 }
 
 void EmbeddedWorkerContextClient::SendWorkerStarted() {
   DCHECK(worker_task_runner_->RunsTasksOnCurrentThread());
   Send(new EmbeddedWorkerHostMsg_WorkerStarted(
       WorkerTaskRunner::Instance()->CurrentWorkerId(),
       embedded_worker_id_));
 }
 
 }  // namespace content