ServiceWorker: Implement 'source' and 'origin' attributes of ExtendableMessageEvent

content/browser/service_worker/service_worker_dispatcher_host.cc

Index: content/browser/service_worker/service_worker_dispatcher_host.cc
diff --git a/content/browser/service_worker/service_worker_dispatcher_host.cc b/content/browser/service_worker/service_worker_dispatcher_host.cc
index 40a32208b92ca74f625490a13087c16393bab23a..85d817b87ea01836deee002fd6121ba142034ff3 100644
--- a/content/browser/service_worker/service_worker_dispatcher_host.cc
+++ b/content/browser/service_worker/service_worker_dispatcher_host.cc
@@ -693,6 +693,7 @@ void ServiceWorkerDispatcherHost::OnGetRegistrationForReady(
 
 void ServiceWorkerDispatcherHost::OnPostMessageToWorker(
     int handle_id,
+    int provider_id,
     const base::string16& message,
     const std::vector<TransferredMessagePort>& sent_message_ports) {
   TRACE_EVENT0("ServiceWorker",
@@ -706,8 +707,15 @@ void ServiceWorkerDispatcherHost::OnPostMessageToWorker(
     return;
   }
 
+  ServiceWorkerProviderHost* sender_provider_host =
+      GetContext()->GetProviderHost(render_process_id_, provider_id);
+  if (!sender_provider_host) {
+    bad_message::ReceivedBadMessage(this, bad_message::SWDH_POST_MESSAGE);
+    return;
+  }
+
   handle->version()->DispatchExtendableMessageEvent(
-      message, sent_message_ports,
+      sender_provider_host, message, sent_message_ports,
       base::Bind(&ServiceWorkerUtils::NoOpStatusCallback));
 }