Revert of Resume the main job immediately when QUIC job fails, not wait for the head start timer to exprie

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 cebad3a9b54c2074f724cea56e5408d42244cc23..ab829e8fedd809864c14701e9570e644c0e406d6 100644
--- a/net/http/http_stream_factory_impl_job_controller.h
+++ b/net/http/http_stream_factory_impl_job_controller.h
@@ -292,10 +292,6 @@
   // True if the main job has to wait for the alternative job: i.e., the main
   // job must not create a connection until it is resumed.
   bool main_job_is_blocked_;
-
-  // True if the main job was blocked and has been resumed in ResumeMainJob().
-  bool main_job_is_resumed_;
-
   // Waiting time for the main job before it is resumed.
   base::TimeDelta main_job_wait_time_;