ServiceWorker: Make "ready" fetches registration from browser process(2/3).

content/browser/service_worker/service_worker_registration.cc

Index: content/browser/service_worker/service_worker_registration.cc
diff --git a/content/browser/service_worker/service_worker_registration.cc b/content/browser/service_worker/service_worker_registration.cc
index 2640e5eeeaf4b0694a37fab95d69a33e35b4ed33..9f056a4af14f86c5e0e37c4a3f8c5e2b105f48de 100644
--- a/content/browser/service_worker/service_worker_registration.cc
+++ b/content/browser/service_worker/service_worker_registration.cc
@@ -304,6 +304,8 @@ void ServiceWorkerRegistration::OnActivateEventFinished(
       // But not from memory if there is a version in the pipeline.
       if (installing_version())
         is_deleted_ = false;
+      else
+        FOR_EACH_OBSERVER(Listener, listeners_, OnRegistrationFailed(this));
     }
     return;
   }