[ServiceWorker] Fetch event should return integrity value

content/common/service_worker/service_worker_fetch_request_struct_traits.h

Index: content/common/service_worker/service_worker_fetch_request_struct_traits.h
diff --git a/content/common/service_worker/service_worker_fetch_request_struct_traits.h b/content/common/service_worker/service_worker_fetch_request_struct_traits.h
index 20ea9671e413a7022348856ad2f9ea073fea1b3f..41549feb562c004104cb36fbc997aa6115539a70 100644
--- a/content/common/service_worker/service_worker_fetch_request_struct_traits.h
+++ b/content/common/service_worker/service_worker_fetch_request_struct_traits.h
@@ -133,6 +133,11 @@ struct StructTraits<blink::mojom::FetchAPIRequestDataView,
     return request.redirect_mode;
   }
 
+  static const std::string& integrity(
+      const content::ServiceWorkerFetchRequest& request) {
+    return request.integrity;
+  }
+
   static const std::string& client_id(
       const content::ServiceWorkerFetchRequest& request) {
     return request.client_id;