[ServiceWorker] Fetch event should return integrity value

content/child/web_url_request_util.cc

 // Copyright 2014 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.
 
 #include "content/child/web_url_request_util.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <limits>
@@ skipping 363 matching lines @@
 STATIC_ASSERT_ENUM(FetchRedirectMode::ERROR_MODE,
                    WebURLRequest::kFetchRedirectModeError);
 STATIC_ASSERT_ENUM(FetchRedirectMode::MANUAL_MODE,
                    WebURLRequest::kFetchRedirectModeManual);
 
 FetchRedirectMode GetFetchRedirectModeForWebURLRequest(
     const blink::WebURLRequest& request) {
   return static_cast<FetchRedirectMode>(request.GetFetchRedirectMode());
 }
 
+std::string GetFetchIntegrityForWebURLRequest(
+    const blink::WebURLRequest& request) {
+  return request.GetFetchIntegrity().Utf8();
+}
+
 STATIC_ASSERT_ENUM(REQUEST_CONTEXT_FRAME_TYPE_AUXILIARY,
                    WebURLRequest::kFrameTypeAuxiliary);
 STATIC_ASSERT_ENUM(REQUEST_CONTEXT_FRAME_TYPE_NESTED,
                    WebURLRequest::kFrameTypeNested);
 STATIC_ASSERT_ENUM(REQUEST_CONTEXT_FRAME_TYPE_NONE,
                    WebURLRequest::kFrameTypeNone);
 STATIC_ASSERT_ENUM(REQUEST_CONTEXT_FRAME_TYPE_TOP_LEVEL,
                    WebURLRequest::kFrameTypeTopLevel);
 
 RequestContextFrameType GetRequestContextFrameTypeForWebURLRequest(
@@ skipping 126 matching lines @@
                                      bool stale_copy_in_cache,
                                      int reason,
                                      bool was_ignored_by_handler) {
   blink::WebURLError error =
       CreateWebURLError(unreachable_url, stale_copy_in_cache, reason);
   error.was_ignored_by_handler = was_ignored_by_handler;
   return error;
 }
 
 }  // namespace content