Add an option to disable net::BidirectionalStreamQuicImpl

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 3648a7a0db58da84d9d384ec61236c01582c1450..0956e7b73e04234559bc73b9593da36f92518b25 100644
--- a/net/http/http_network_session.h
+++ b/net/http/http_network_session.h
@@ -182,6 +182,9 @@ class NET_EXPORT HttpNetworkSession
     // If true, active QUIC sessions experiencing poor connectivity may be
     // migrated onto a new network.
     bool quic_migrate_sessions_early;
+    // If true, bidirectional streams over QUIC will be disabled.
+    bool quic_disable_bidirectional_streams;
+
     ProxyDelegate* proxy_delegate;
     // Enable support for Token Binding.
     bool enable_token_binding;