ServiceWorker: Ensure live registration during starting worker

content/browser/service_worker/service_worker_browsertest.cc

Index: content/browser/service_worker/service_worker_browsertest.cc
diff --git a/content/browser/service_worker/service_worker_browsertest.cc b/content/browser/service_worker/service_worker_browsertest.cc
index c6f877baf870396d1a90b4f42eb11c119225f0af..69f5173aa5a7c85f7e12bf21b3c66c8868fb73a4 100644
--- a/content/browser/service_worker/service_worker_browsertest.cc
+++ b/content/browser/service_worker/service_worker_browsertest.cc
@@ -524,6 +524,11 @@ class ServiceWorkerVersionBrowserTest : public ServiceWorkerBrowserTest {
         embedded_test_server()->GetURL(worker_url),
         wrapper()->context()->storage()->NewVersionId(),
         wrapper()->context()->AsWeakPtr());
+
+    // Make the registration findable via storage functions.
+    wrapper()->context()->storage()->NotifyInstallingRegistration(
+        registration_.get());
+
     AssociateRendererProcessToPattern(pattern);
   }