ServiceWorker: Make APIs that return ServiceWorkerRegistration coin a new JS object (2/3)

content/renderer/service_worker/service_worker_context_client.cc

Index: content/renderer/service_worker/service_worker_context_client.cc
diff --git a/content/renderer/service_worker/service_worker_context_client.cc b/content/renderer/service_worker/service_worker_context_client.cc
index 8559612a7648ad8f26217602ebd5c6ad889e4d83..28bec5a094502621785f236a698faaefc9d6f957 100644
--- a/content/renderer/service_worker/service_worker_context_client.cc
+++ b/content/renderer/service_worker/service_worker_context_client.cc
@@ -671,14 +671,7 @@ void ServiceWorkerContextClient::SetRegistrationInServiceWorkerGlobalScope() {
   // Register a registration and its version attributes with the dispatcher
   // living on the worker thread.
   scoped_ptr<WebServiceWorkerRegistrationImpl> registration(
-      dispatcher->CreateServiceWorkerRegistration(info, false));
-  registration->SetInstalling(
-      dispatcher->GetServiceWorker(attrs.installing, false));
-  registration->SetWaiting(
-      dispatcher->GetServiceWorker(attrs.waiting, false));
-  registration->SetActive(
-      dispatcher->GetServiceWorker(attrs.active, false));
-
+      dispatcher->CreateRegistration(info, attrs, false));
   proxy_->setRegistration(registration.release());
 }