Disable QuicFlowController for QUIC versions < QUIC_VERSION_17

net/quic/reliable_quic_stream.cc

Index: net/quic/reliable_quic_stream.cc
diff --git a/net/quic/reliable_quic_stream.cc b/net/quic/reliable_quic_stream.cc
index a30ae57a4f9b30fb68fd226c48cc1d741441c148..31261bbf145129f86fdd21676377a21350840e01 100644
--- a/net/quic/reliable_quic_stream.cc
+++ b/net/quic/reliable_quic_stream.cc
@@ -129,6 +129,9 @@ ReliableQuicStream::ReliableQuicStream(QuicStreamId id, QuicSession* session)
           session_->config()->peer_initial_flow_control_window_bytes(),
           session_->connection()->max_flow_control_receive_window_bytes(),
           session_->connection()->max_flow_control_receive_window_bytes()) {
+  if (session_->connection()->version() < QUIC_VERSION_17) {
+    flow_controller_.Disable();
+  }
 }
 
 ReliableQuicStream::~ReliableQuicStream() {