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

content/child/service_worker/service_worker_dispatcher.cc

Index: content/child/service_worker/service_worker_dispatcher.cc
diff --git a/content/child/service_worker/service_worker_dispatcher.cc b/content/child/service_worker/service_worker_dispatcher.cc
index 80166e19e3c1096cbbe11a6700a922b7b9ef7515..c21fb7918720608a7011c027b72e3fec8ca617ea 100644
--- a/content/child/service_worker/service_worker_dispatcher.cc
+++ b/content/child/service_worker/service_worker_dispatcher.cc
@@ -123,6 +123,7 @@ void ServiceWorkerDispatcher::RegisterServiceWorker(
     int provider_id,
     const GURL& pattern,
     const GURL& script_url,
+    bool use_cache,
     std::unique_ptr<WebServiceWorkerRegistrationCallbacks> callbacks) {
   DCHECK(callbacks);
 
@@ -137,13 +138,16 @@ void ServiceWorkerDispatcher::RegisterServiceWorker(
   }
 
   int request_id = pending_registration_callbacks_.Add(std::move(callbacks));
+  ServiceWorkerRegistrationAttributes attrs = {
+      .script_url = script_url, .pattern = pattern, .use_cache = use_cache,
+  };
   TRACE_EVENT_ASYNC_BEGIN2("ServiceWorker",
                            "ServiceWorkerDispatcher::RegisterServiceWorker",
                            request_id,
                            "Scope", pattern.spec(),
                            "Script URL", script_url.spec());
   thread_safe_sender_->Send(new ServiceWorkerHostMsg_RegisterServiceWorker(
-      CurrentWorkerId(), request_id, provider_id, pattern, script_url));
+      CurrentWorkerId(), request_id, provider_id, attrs));
 }
 
 void ServiceWorkerDispatcher::UpdateServiceWorker(
@@ -186,6 +190,7 @@ void ServiceWorkerDispatcher::GetRegistration(
 
   int request_id =
       pending_get_registration_callbacks_.Add(std::move(callbacks));
+
   TRACE_EVENT_ASYNC_BEGIN1("ServiceWorker",
                            "ServiceWorkerDispatcher::GetRegistration",
                            request_id,