Don't prematurely delete script resources when registration is deleted

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 7ea5029b10cdd734cdbf03d6ddd4442283eeb690..86c41f65d0cc3a792b37d3f8cc26c3eef2893166 100644
--- a/content/browser/service_worker/service_worker_registration.cc
+++ b/content/browser/service_worker/service_worker_registration.cc
@@ -18,7 +18,7 @@ ServiceWorkerRegistration::ServiceWorkerRegistration(
     : pattern_(pattern),
       script_url_(script_url),
       registration_id_(registration_id),
-      is_shutdown_(false),
+      is_uninstalling_(false),
       context_(context) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   DCHECK(context_);