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

content/common/service_worker/service_worker_types.h

Index: content/common/service_worker/service_worker_types.h
diff --git a/content/common/service_worker/service_worker_types.h b/content/common/service_worker/service_worker_types.h
index a3f10c418d8177e3322f1f98eade3478c753b917..ca9b29718a296b202dacb17bae13428c91974aad 100644
--- a/content/common/service_worker/service_worker_types.h
+++ b/content/common/service_worker/service_worker_types.h
@@ -23,6 +23,7 @@
 #include "third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerResponseError.h"
 #include "third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerResponseType.h"
 #include "third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerState.h"
+#include "third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerUpdateViaCache.h"
 #include "url/gurl.h"
 
 // This file is to have common definitions that are to be shared by
@@ -221,10 +222,21 @@ struct CONTENT_EXPORT ServiceWorkerObjectInfo {
   int64_t version_id;
 };
 
+struct CONTENT_EXPORT ServiceWorkerRegistrationOptions {
+  ServiceWorkerRegistrationOptions();
+  // Initialize |scope| with the specified value and the rest with defaults
+  explicit ServiceWorkerRegistrationOptions(const GURL& scope);
+  ServiceWorkerRegistrationOptions(
+      const GURL& scope,
+      blink::WebServiceWorkerUpdateViaCache update_via_cache);
+  GURL scope;
+  blink::WebServiceWorkerUpdateViaCache update_via_cache;
+};
+
 struct CONTENT_EXPORT ServiceWorkerRegistrationObjectInfo {
   ServiceWorkerRegistrationObjectInfo();
   int handle_id;
-  GURL scope;
+  ServiceWorkerRegistrationOptions options;
   int64_t registration_id;
 };