gfe-relnote: In QUIC, when RTO fires and there is no packet to be RTOed, let connection send data. Protected by gfe2_reloadable_flag_quic_fix_rto_retransmission.

PiperOrigin-RevId: 258417558
Change-Id: I75267afafee6834f7b6f4cd59d08bdc036c3bd58
diff --git a/quic/core/quic_sent_packet_manager.h b/quic/core/quic_sent_packet_manager.h
index b90d977..4727724 100644
--- a/quic/core/quic_sent_packet_manager.h
+++ b/quic/core/quic_sent_packet_manager.h
@@ -389,6 +389,8 @@
     return ignore_tlpr_if_no_pending_stream_data_;
   }
 
+  bool fix_rto_retransmission() const { return fix_rto_retransmission_; }
+
  private:
   friend class test::QuicConnectionPeer;
   friend class test::QuicSentPacketManagerPeer;
@@ -634,6 +636,9 @@
 
   // Latched value of quic_ignore_tlpr_if_no_pending_stream_data.
   const bool ignore_tlpr_if_no_pending_stream_data_;
+
+  // Latched value of quic_fix_rto_retransmission.
+  const bool fix_rto_retransmission_;
 };
 
 }  // namespace quic