Introduce url_list to the Response scheme of CacheStorage.

content/browser/service_worker/service_worker_url_request_job.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_URL_REQUEST_JOB_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_URL_REQUEST_JOB_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <string>
+#include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "content/browser/service_worker/embedded_worker_status.h"
 #include "content/browser/service_worker/service_worker_metrics.h"
 #include "content/common/content_export.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "content/common/service_worker/service_worker_types.h"
@@ skipping 215 matching lines @@
   base::Time response_time_;
 
   ResponseType response_type_;
   bool is_started_;
 
   net::HttpByteRange byte_range_;
   std::unique_ptr<net::HttpResponseInfo> range_response_info_;
   std::unique_ptr<net::HttpResponseInfo> http_response_info_;
   // Headers that have not yet been committed to |http_response_info_|.
   scoped_refptr<net::HttpResponseHeaders> http_response_headers_;
-  GURL response_url_;
+  std::vector<GURL> response_url_list_;
   blink::WebServiceWorkerResponseType service_worker_response_type_;
 
   // Used when response type is FORWARD_TO_SERVICE_WORKER.
   std::unique_ptr<ServiceWorkerFetchDispatcher> fetch_dispatcher_;
   std::string client_id_;
   base::WeakPtr<storage::BlobStorageContext> blob_storage_context_;
   const ResourceContext* resource_context_;
   // Only one of |blob_reader_| and |stream_reader_| can be non-null.
   std::unique_ptr<ServiceWorkerBlobReader> blob_reader_;
   std::unique_ptr<ServiceWorkerStreamReader> stream_reader_;
@@ skipping 25 matching lines @@
   EmbeddedWorkerStatus initial_worker_status_ = EmbeddedWorkerStatus::STOPPED;
 
   base::WeakPtrFactory<ServiceWorkerURLRequestJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerURLRequestJob);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_URL_REQUEST_JOB_H_