Improve HttpStreamFactory NetLog events

net/http/http_stream_factory_impl_job_controller.h

Index: net/http/http_stream_factory_impl_job_controller.h
diff --git a/net/http/http_stream_factory_impl_job_controller.h b/net/http/http_stream_factory_impl_job_controller.h
index b7f8ac363e92fcde63865959c0a64fe6c15daeb6..635cf9fc18d343f74705f8ead8399b5b2eaef574 100644
--- a/net/http/http_stream_factory_impl_job_controller.h
+++ b/net/http/http_stream_factory_impl_job_controller.h
@@ -22,7 +22,8 @@ class HttpStreamFactoryImpl::JobController
   JobController(HttpStreamFactoryImpl* factory,
                 HttpStreamRequest::Delegate* delegate,
                 HttpNetworkSession* session,
-                JobFactory* job_factory);
+                JobFactory* job_factory,
+                bool is_preconnect);
 
   ~JobController() override;
 
@@ -34,6 +35,9 @@ class HttpStreamFactoryImpl::JobController
 
   GURL ApplyHostMappingRules(const GURL& url, HostPortPair* endpoint);
 
+  // Associates |net_log_| with |source_net_log|.
+  void AssociateWithNetLogSource(const NetLogWithSource& source_net_log);
+
   // Methods below are called by HttpStreamFactoryImpl only.
   // Creates request and hands out to HttpStreamFactoryImpl, this will also
   // create Job(s) and start serving the created request.
@@ -41,7 +45,7 @@ class HttpStreamFactoryImpl::JobController
                  HttpStreamRequest::Delegate* delegate,
                  WebSocketHandshakeStreamBase::CreateHelper*
                      websocket_handshake_stream_create_helper,
-                 const NetLogWithSource& net_log,
+                 const NetLogWithSource& source_net_log,
                  HttpStreamRequest::StreamType stream_type,
                  RequestPriority priority,
                  const SSLConfig& server_ssl_config,
@@ -188,8 +192,7 @@ class HttpStreamFactoryImpl::JobController
                   const SSLConfig& server_ssl_config,
                   const SSLConfig& proxy_ssl_config,
                   HttpStreamRequest::Delegate* delegate,
-                  HttpStreamRequest::StreamType stream_type,
-                  const NetLogWithSource& net_log);
+                  HttpStreamRequest::StreamType stream_type);
 
   // Attaches |job| to |request_|. Does not mean that |request_| will use |job|.
   void AttachJob(Job* job);
@@ -279,7 +282,7 @@ class HttpStreamFactoryImpl::JobController
   HttpStreamRequest::Delegate* const delegate_;
 
   // True if this JobController is used to preconnect streams.
-  bool is_preconnect_;
+  const bool is_preconnect_;
 
   // |main_job_| is a job waiting to see if |alternative_job_| can reuse a
   // connection. If |alternative_job_| is unable to do so, |this| will notify
@@ -315,6 +318,8 @@ class HttpStreamFactoryImpl::JobController
   // Privacy mode that should be used for fetching the resource.
   PrivacyMode privacy_mode_;
 
+  const NetLogWithSource net_log_;
+
   base::WeakPtrFactory<JobController> ptr_factory_;
 };