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

content/common/service_worker/service_worker_types.cc

Index: content/common/service_worker/service_worker_types.cc
diff --git a/content/common/service_worker/service_worker_types.cc b/content/common/service_worker/service_worker_types.cc
index f483200bf94e55f49ba3fe865f8e9caf2cd0bc79..ebbcb74585feb0f324f5716476ac5a9d726c568e 100644
--- a/content/common/service_worker/service_worker_types.cc
+++ b/content/common/service_worker/service_worker_types.cc
@@ -135,10 +135,21 @@ bool ServiceWorkerObjectInfo::IsValid() const {
          version_id != kInvalidServiceWorkerVersionId;
 }
 
+ServiceWorkerRegistrationOptions::ServiceWorkerRegistrationOptions()
+    : use_cache(UseCache::DontUse) {}
+
+ServiceWorkerRegistrationOptions::ServiceWorkerRegistrationOptions(
+    const GURL& scope)
+    : scope(scope), use_cache(UseCache::DontUse) {}

[nhiroki, 2017/03/28 06:49:51]

Delegating constructor would work here:

ServiceWorkerRegistrationOptions::ServiceWorkerRegistrationOptions(
    const GURL& scope)
    : ServiceWorkerRegistrationOptions(scope, UseCache::DontUse) {}

[yuryu, 2017/07/20 10:15:12]

Done.

+
+ServiceWorkerRegistrationOptions::ServiceWorkerRegistrationOptions(
+    const GURL& scope,
+    UseCache use_cache)
+    : scope(scope), use_cache(use_cache) {}
+
 ServiceWorkerRegistrationObjectInfo::ServiceWorkerRegistrationObjectInfo()
     : handle_id(kInvalidServiceWorkerRegistrationHandleId),
-      registration_id(kInvalidServiceWorkerRegistrationId) {
-}
+      registration_id(kInvalidServiceWorkerRegistrationId) {}
 
 ServiceWorkerClientQueryOptions::ServiceWorkerClientQueryOptions()
     : client_type(blink::WebServiceWorkerClientTypeWindow),