Service Worker: Use more specific errors when StartWorker fails

content/browser/service_worker/service_worker_context_wrapper.cc

Index: content/browser/service_worker/service_worker_context_wrapper.cc
diff --git a/content/browser/service_worker/service_worker_context_wrapper.cc b/content/browser/service_worker/service_worker_context_wrapper.cc
index 6c857eb63672be72dd91263cb0f653560050f84d..6ed880458c8b561605ca59190cd5b8ff262c3333 100644
--- a/content/browser/service_worker/service_worker_context_wrapper.cc
+++ b/content/browser/service_worker/service_worker_context_wrapper.cc
@@ -249,9 +249,8 @@ void ServiceWorkerContextWrapper::StartServiceWorker(
   }
   if (!context_core_.get()) {
     LOG(ERROR) << "ServiceWorkerContextCore is no longer alive.";
-    BrowserThread::PostTask(
-        BrowserThread::UI, FROM_HERE,
-        base::Bind(callback, SERVICE_WORKER_ERROR_START_WORKER_FAILED));
+    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+                            base::Bind(callback, SERVICE_WORKER_ERROR_ABORT));
     return;
   }
   context_core_->storage()->FindRegistrationForPattern(