Improve HttpStreamFactory NetLog events

net/http/http_stream_factory_impl.h

Index: net/http/http_stream_factory_impl.h
diff --git a/net/http/http_stream_factory_impl.h b/net/http/http_stream_factory_impl.h
index b61b8abee89f66676b743d0566e1efcf301dac80..46006b86b2bb63269d3da7757b71d31e2771f0fd 100644
--- a/net/http/http_stream_factory_impl.h
+++ b/net/http/http_stream_factory_impl.h
@@ -18,6 +18,7 @@
 #include "net/base/net_export.h"
 #include "net/base/request_priority.h"
 #include "net/http/http_stream_factory.h"
+#include "net/log/net_log_with_source.h"
 #include "net/proxy/proxy_server.h"
 #include "net/socket/ssl_client_socket.h"
 #include "net/spdy/spdy_session_key.h"
@@ -115,8 +116,7 @@ class NET_EXPORT_PRIVATE HttpStreamFactoryImpl : public HttpStreamFactory {
                              const ProxyInfo& used_proxy_info,
                              bool was_alpn_negotiated,
                              NextProto negotiated_protocol,
-                             bool using_spdy,
-                             const NetLogWithSource& net_log);
+                             bool using_spdy);
 
   // Called when the Job detects that the endpoint indicated by the
   // Alternate-Protocol does not work. Lets the factory update
@@ -168,6 +168,8 @@ class NET_EXPORT_PRIVATE HttpStreamFactoryImpl : public HttpStreamFactory {
 
   const bool for_websockets_;
 
+  const NetLogWithSource factory_net_log_;
+
   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactoryImpl);
 };