Clean up HttpStreamFactoryImpl::JobController when Impl::Jobs complete

net/http/http_stream_factory_impl_job_controller.h

 // Copyright (c) 2016 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 NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_CONTROLLER_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_CONTROLLER_H_
 
 #include "net/base/host_port_pair.h"
 #include "net/http/http_stream_factory_impl_job.h"
 #include "net/http/http_stream_factory_impl_request.h"
@@ skipping 194 matching lines @@
 
   // Must be called when |alternative_job_| fails.
   void OnAlternativeJobFailed(Job* job);
 
   // Called to report to http_server_properties to mark alternative service
   // broken.
   void ReportBrokenAlternativeService();
 
   void MaybeNotifyFactoryOfCompletion();
 
-  // Called to resume the main job with delay.
+  // Called to resume the main job with delay. Main job is resumed only when
+  // |alternative_job_| has failed or |main_job_wait_time_| elapsed.
   void MaybeResumeMainJob(Job* job, const base::TimeDelta& delay);
 
   void ResumeMainJob();
 
   // Returns true if QUIC is whitelisted for |host|.
   bool IsQuicWhitelistedForHost(const std::string& host);
 
   AlternativeService GetAlternativeServiceFor(
       const HttpRequestInfo& request_info,
       HttpStreamRequest::Delegate* delegate,
@@ skipping 17 matching lines @@
       const GURL& url,
       ProxyServer* alternative_proxy_server) const;
 
   // Records histogram metrics for the usage of alternative protocol. Must be
   // called when |job| has succeeded and the other job will be orphaned.
   void ReportAlternateProtocolUsage(Job* job) const;
 
   // Starts the |alternative_job_|.
   void StartAlternativeProxyServerJob();
 
+  // Returns whether |job| is an orphaned job.
+  bool IsJobOrphaned(Job* job) const;
+
   HttpStreamFactoryImpl* factory_;
   HttpNetworkSession* session_;
   JobFactory* job_factory_;
 
   // Request will be handed out to factory once created. This just keeps an
   // reference and is safe as |request_| will notify |this| JobController
   // when it's destructed by calling OnRequestComplete(), which nulls
   // |request_|.
   Request* request_;
 
@@ skipping 32 matching lines @@
 
   // True if an alternative proxy server job can be started to fetch |request_|.
   bool can_start_alternative_proxy_job_;
 
   base::WeakPtrFactory<JobController> ptr_factory_;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_CONTROLLER_H_