Add net-log entries when HttpStream jobs are forced to wait, and when they're delayed and resumed.

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 200 matching lines @@
   // Called to report to http_server_properties to mark alternative service
   // broken.
   void ReportBrokenAlternativeService();
 
   void MaybeNotifyFactoryOfCompletion();
 
   // 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);
 
+  // Posts a task to resume the main job after |delay|.
+  void ResumeMainJobLater(const base::TimeDelta& delay);
+
+  // Resumes the main job immediately.
   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,
       HttpStreamRequest::StreamType stream_type);
 
@@ skipping 70 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_