QUIC - Disable Preconnect when QUIC can be spoken to a server with 0RTT

net/http/http_network_session.h

Index: net/http/http_network_session.h
diff --git a/net/http/http_network_session.h b/net/http/http_network_session.h
index f250ccae1bcbbf6951f842b7cda49639282f8246..e23547eb6714a9dc01d3a9a26ad3f71a38d821ad 100644
--- a/net/http/http_network_session.h
+++ b/net/http/http_network_session.h
@@ -175,6 +175,8 @@ class NET_EXPORT HttpNetworkSession
     bool quic_close_sessions_on_ip_change;
     // Specifes QUIC idle connection state lifetime.
     int quic_idle_connection_timeout_seconds;
+    // If true, disable preconnections if QUIC can do 0RTT.
+    bool quic_disable_preconnect_if_0rtt;
     ProxyDelegate* proxy_delegate;
   };