Introduce Platform::cacheMetadataInCacheStorage() to store V8 code cache in CacheStorage

content/browser/service_worker/service_worker_url_request_job.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/browser/service_worker/service_worker_url_request_job.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <limits>
@@ skipping 730 matching lines @@
     header.append(it->second);
     http_response_headers_->AddHeader(header);
   }
 }
 
 void ServiceWorkerURLRequestJob::CommitResponseHeader() {
   if (!http_response_info_)
     http_response_info_.reset(new net::HttpResponseInfo());
   http_response_info_->headers.swap(http_response_headers_);
   http_response_info_->vary_data = net::HttpVaryData();
-  http_response_info_->metadata = nullptr;
+  http_response_info_->metadata =
+      blob_request_ ? blob_request_->response_info().metadata : nullptr;
   NotifyHeadersComplete();
 }
 
 void ServiceWorkerURLRequestJob::DeliverErrorResponse() {
   // TODO(falken): Print an error to the console of the ServiceWorker and of
   // the requesting page.
   CreateResponseHeader(
       500, "Service Worker Response Error", ServiceWorkerHeaderMap());
   CommitResponseHeader();
 }
@@ skipping 92 matching lines @@
                          service_worker_response_type_, worker_start_time_,
                          worker_ready_time_, response_is_in_cache_storage_,
                          response_cache_storage_cache_name_);
 }
 
 bool ServiceWorkerURLRequestJob::IsMainResourceLoad() const {
   return ServiceWorkerUtils::IsMainResourceType(resource_type_);
 }
 
 }  // namespace content