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

content/browser/service_worker/service_worker_info.h

Index: content/browser/service_worker/service_worker_info.h
diff --git a/content/browser/service_worker/service_worker_info.h b/content/browser/service_worker/service_worker_info.h
index 461657536c19cced32871a646381157937851183..03b6cabed6e892455e933aebba4be5faf52b3e9e 100644
--- a/content/browser/service_worker/service_worker_info.h
+++ b/content/browser/service_worker/service_worker_info.h
@@ -69,6 +69,7 @@ struct CONTENT_EXPORT ServiceWorkerRegistrationInfo {
                                 DeleteFlag delete_flag);
   ServiceWorkerRegistrationInfo(
       const GURL& pattern,
+      bool use_cache,
       int64_t registration_id,
       DeleteFlag delete_flag,
       const ServiceWorkerVersionInfo& active_version,
@@ -79,6 +80,7 @@ struct CONTENT_EXPORT ServiceWorkerRegistrationInfo {
   ~ServiceWorkerRegistrationInfo();
 
   GURL pattern;
+  bool use_cache;
   int64_t registration_id;
   DeleteFlag delete_flag;
   ServiceWorkerVersionInfo active_version;