Add a status code to install event handled message from Service Worker

content/common/service_worker/service_worker_messages.h

Index: content/common/service_worker/service_worker_messages.h
diff --git a/content/common/service_worker/service_worker_messages.h b/content/common/service_worker/service_worker_messages.h
index c4af2717f2e3c8a3c08641a5fb6953717727df70..2a199e16935d6042df77731f8edc2523b410dce6 100644
--- a/content/common/service_worker/service_worker_messages.h
+++ b/content/common/service_worker/service_worker_messages.h
@@ -20,6 +20,9 @@
 IPC_ENUM_TRAITS_MAX_VALUE(blink::WebServiceWorkerError::ErrorType,
                           blink::WebServiceWorkerError::ErrorTypeLast)
 
+IPC_ENUM_TRAITS_MAX_VALUE(content::ServiceWorkerInstallEventResult,
+                          content::SERVICE_WORKER_INSTALL_EVENT_RESULT_LAST)
+
 IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerFetchRequest)
   IPC_STRUCT_TRAITS_MEMBER(url)
   IPC_STRUCT_TRAITS_MEMBER(method)
@@ -110,12 +113,12 @@ IPC_MESSAGE_CONTROL2(ServiceWorkerHostMsg_RemoveScriptClient,
                      int /* provider_id */)
 
 // Informs the browser that install event handling has finished.
-// Sent via EmbeddedWorker. If there was an exception during the
-// event handling it'll be reported back separately (to be propagated
-// to the documents).
-IPC_MESSAGE_CONTROL0(ServiceWorkerHostMsg_InstallEventFinished)
+// Sent via EmbeddedWorker.
+IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_InstallEventFinished,
+                     content::ServiceWorkerInstallEventResult)
 
 // Informs the browser that fetch event handling has finished.
+// Sent via EmbeddedWorker.
 IPC_MESSAGE_CONTROL2(ServiceWorkerHostMsg_FetchEventFinished,
                      content::ServiceWorkerFetchEventResult,
                      content::ServiceWorkerResponse)