QUIC - enable "delay_tcp_race" parameter by default. This feature showed

net/quic/quic_stream_factory.h

Index: net/quic/quic_stream_factory.h
diff --git a/net/quic/quic_stream_factory.h b/net/quic/quic_stream_factory.h
index a03edf3a5dbc39442faf4ba95ec5e5530de549e3..a56a70eaadb586729dab4acc567b7cfbb1843a0c 100644
--- a/net/quic/quic_stream_factory.h
+++ b/net/quic/quic_stream_factory.h
@@ -155,7 +155,6 @@ class NET_EXPORT_PRIVATE QuicStreamFactory
       int threshold_timeouts_with_streams_open,
       int threshold_public_resets_post_handshake,
       int socket_receive_buffer_size,
-      bool delay_tcp_race,
       int max_server_configs_stored_in_properties,
       bool close_sessions_on_ip_change,
       bool disable_quic_on_timeout_with_open_streams,
@@ -322,8 +321,6 @@ class NET_EXPORT_PRIVATE QuicStreamFactory
 
   int socket_receive_buffer_size() const { return socket_receive_buffer_size_; }
 
-  bool delay_tcp_race() const { return delay_tcp_race_; }
-
  private:
   class Job;
   friend class test::QuicStreamFactoryPeer;
@@ -516,9 +513,6 @@ class NET_EXPORT_PRIVATE QuicStreamFactory
   // Size of the UDP receive buffer.
   int socket_receive_buffer_size_;
 
-  // Set if we do want to delay TCP connection when it is racing with QUIC.
-  bool delay_tcp_race_;
-
   // If more than |yield_after_packets_| packets have been read or more than
   // |yield_after_duration_| time has passed, then
   // QuicChromiumPacketReader::StartReading() yields by doing a PostTask().