Implement updateViaCache flag and no-cache by default for main service worker scripts

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 e4c15cdcb224ae2f9ea08f55f7234cbd4f5622b0..117745c0f048520adb13bcbb920410e3b6719346 100644
--- a/content/common/service_worker/service_worker_messages.h
+++ b/content/common/service_worker/service_worker_messages.h
@@ -44,6 +44,9 @@ IPC_ENUM_TRAITS_MAX_VALUE(blink::WebServiceWorkerResponseError,
 IPC_ENUM_TRAITS_MAX_VALUE(blink::WebServiceWorkerClientType,
                           blink::kWebServiceWorkerClientTypeLast)
 
+IPC_ENUM_TRAITS_MAX_VALUE(blink::WebServiceWorkerUpdateViaCache,
+                          blink::WebServiceWorkerUpdateViaCache::kLast)
+
 IPC_ENUM_TRAITS_MAX_VALUE(blink::mojom::FetchResponseType,
                           blink::mojom::FetchResponseType::kLast)
 
@@ -111,6 +114,7 @@ IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerRegistrationOptions)
   IPC_STRUCT_TRAITS_MEMBER(scope)
+  IPC_STRUCT_TRAITS_MEMBER(update_via_cache)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerRegistrationObjectInfo)