Create chrome://serviceworker-internals

content/browser/service_worker/service_worker_registration.h

Index: content/browser/service_worker/service_worker_registration.h
diff --git a/content/browser/service_worker/service_worker_registration.h b/content/browser/service_worker/service_worker_registration.h
index 259039590eeef5c2e84280b9f5ad4ad72117fbcd..4d39d5348715fea6e9149c81f06c7a9f2f59fb32 100644
--- a/content/browser/service_worker/service_worker_registration.h
+++ b/content/browser/service_worker/service_worker_registration.h
@@ -16,6 +16,7 @@
 
 namespace content {
 
+class ServiceWorkerRegistrationInfo;
 class ServiceWorkerVersion;
 
 // This class manages all persistence of service workers:
@@ -67,6 +68,8 @@ class CONTENT_EXPORT ServiceWorkerRegistration
     pending_version_ = version;
   }
 
+  ServiceWorkerRegistrationInfo GetInfo();
+
   // The final synchronous switchover after all events have been
   // fired, and the old "active version" is being shut down.
   void ActivatePendingVersion();