ServiceWorker: Change worker script fetch error code(2/3).

content/browser/service_worker/service_worker_version.cc

Index: content/browser/service_worker/service_worker_version.cc
diff --git a/content/browser/service_worker/service_worker_version.cc b/content/browser/service_worker/service_worker_version.cc
index 88d8e482705452cf45e45419d774a190f9c6ecd7..09323fb53c4658c65cabfe4646a6185a2a353ea3 100644
--- a/content/browser/service_worker/service_worker_version.cc
+++ b/content/browser/service_worker/service_worker_version.cc
@@ -415,6 +415,12 @@ void ServiceWorkerVersion::Doom() {
     DoomInternal();
 }
 
+void ServiceWorkerVersion::NotifyStartWorkerURLRequestError(
+    ServiceWorkerStatusCode status) {
+  DCHECK(status != SERVICE_WORKER_OK);
+  RunCallbacks(this, &start_callbacks_, status);
+}
+
 void ServiceWorkerVersion::OnStarted() {
   DCHECK_EQ(RUNNING, running_status());
   if (status() == ACTIVATED && !HasControllee())