[ServiceWorker] Fetch event should return integrity value

content/common/service_worker/service_worker_fetch_request_struct_traits.h

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_FETCH_REQUEST_STRUCT_TRAITS_H_
 #define CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_FETCH_REQUEST_STRUCT_TRAITS_H_
 
 #include "base/numerics/safe_conversions.h"
 #include "content/public/common/referrer.h"
 #include "third_party/WebKit/public/platform/modules/fetch/fetch_api_request.mojom.h"
@@ skipping 115 matching lines @@
   static content::FetchCredentialsMode credentials_mode(
       const content::ServiceWorkerFetchRequest& request) {
     return request.credentials_mode;
   }
 
   static content::FetchRedirectMode redirect_mode(
       const content::ServiceWorkerFetchRequest& request) {
     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;
   }
 
   static bool is_reload(const content::ServiceWorkerFetchRequest& request) {
     return request.is_reload;
   }
 
   static content::ServiceWorkerFetchType fetch_type(
       const content::ServiceWorkerFetchRequest& request) {
     return request.fetch_type;
   }
 
   static bool Read(blink::mojom::FetchAPIRequestDataView data,
                    content::ServiceWorkerFetchRequest* out);
 };
 
 }  // namespace mojo
 
 #endif  // CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_FETCH_REQUEST_STRUCT_TRAITS_H_