[ServiceWorker] Refactor the codes for releasing the resources for streaming.

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 <map>
 #include <string>
 
@@ skipping 23 matching lines @@
 class BlobStorageContext;
 }
 
 namespace content {
 
 class ResourceContext;
 class ResourceRequestBody;
 class ServiceWorkerContextCore;
 class ServiceWorkerFetchDispatcher;
 class ServiceWorkerProviderHost;
+class ServiceWorkerVersion;
 class Stream;
 
 class CONTENT_EXPORT ServiceWorkerURLRequestJob
     : public net::URLRequestJob,
       public net::URLRequest::Delegate,
       public StreamReadObserver,
       public StreamRegisterObserver {
  public:
   ServiceWorkerURLRequestJob(
       net::URLRequest* request,
@@ skipping 98 matching lines @@
                             const std::string& status_text,
                             const ServiceWorkerHeaderMap& headers);
 
   // Creates |http_response_info_| using |http_response_headers_| and calls
   // NotifyHeadersComplete.
   void CommitResponseHeader();
 
   // Creates and commits a response header indicating error.
   void DeliverErrorResponse();
 
+  // Releases the resources for streaming.
+  void ClearStream();
+
   base::WeakPtr<ServiceWorkerProviderHost> provider_host_;
 
   // Timing info to show on the popup in Devtools' Network tab.
   net::LoadTimingInfo load_timing_info_;
   base::TimeTicks fetch_start_time_;
   base::TimeTicks fetch_ready_time_;
   base::TimeTicks fetch_end_time_;
   base::Time response_time_;
 
   ResponseType response_type_;
@@ skipping 19 matching lines @@
 
   FetchRequestMode request_mode_;
   FetchCredentialsMode credentials_mode_;
   RequestContextType request_context_type_;
   RequestContextFrameType frame_type_;
   bool fall_back_required_;
   // ResourceRequestBody has a collection of BlobDataHandles attached to it
   // using the userdata mechanism. So we have to keep it not to free the blobs.
   scoped_refptr<ResourceRequestBody> body_;
   scoped_ptr<storage::BlobDataHandle> request_body_blob_data_handle_;
+  scoped_refptr<ServiceWorkerVersion> streaming_version_;
 
   base::WeakPtrFactory<ServiceWorkerURLRequestJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerURLRequestJob);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_URL_REQUEST_JOB_H_