Verify --gfe2_reloadable_flag_quic_bbr_exit_startup_on_loss

GFE: No public description
ustreamer: No public description
PiperOrigin-RevId: 865556243

quiche/common/quiche_feature_flags_list.h

diff --git a/quiche/common/quiche_feature_flags_list.h b/quiche/common/quiche_feature_flags_list.h
index aa36eb3..f1813f8 100755
--- a/quiche/common/quiche_feature_flags_list.h
+++ b/quiche/common/quiche_feature_flags_list.h
@@ -15,7 +15,7 @@
 QUICHE_FLAG(bool, quiche_reloadable_flag_quic_bandwidth_sampler_guard_rtt_subtraction, false, false, "When true, BandwidthSampler::OnPacketAcknowledgedInner() will return early rather than compute a negative RTT.")
 QUICHE_FLAG(bool, quiche_reloadable_flag_quic_bbr2_extra_acked_window, false, true, "When true, the BBR4 copt sets the extra_acked window to 20 RTTs and BBR5 sets it to 40 RTTs.")
 QUICHE_FLAG(bool, quiche_reloadable_flag_quic_bbr_always_exit_startup_on_loss, false, false, "Lets BBRv1 exit STARTUP if a large number of packets was lost even if there is no non-app-limited samples. Similar to applying connection option B1AL to all connection.")
-QUICHE_FLAG(bool, quiche_reloadable_flag_quic_bbr_exit_startup_on_loss, false, false, "Enables negotiation of a connection option (B1AL) that lets BBRv1 exit STARTUP if a large number of packets was lost even if there is no non-app-limited sample.")
+QUICHE_FLAG(bool, quiche_reloadable_flag_quic_bbr_exit_startup_on_loss, false, true, "Enables negotiation of a connection option (B1AL) that lets BBRv1 exit STARTUP if a large number of packets was lost even if there is no non-app-limited sample.")
 QUICHE_FLAG(bool, quiche_reloadable_flag_quic_block_until_settings_received_copt, true, true, "If enabled and a BSUS connection is received, blocks server connections until SETTINGS frame is received.")
 QUICHE_FLAG(bool, quiche_reloadable_flag_quic_client_check_blockage_before_on_can_write, false, false, "If true, quic clients will only call OnCanWrite() upon write events if the writer is unblocked.")
 QUICHE_FLAG(bool, quiche_reloadable_flag_quic_close_on_idle_timeout, false, false, "If true, closes the connection if it has exceeded the idle timeout when deciding whether to open a stream.")