Add flag counts for gfe2_quic_reloadable_flag_quic_bbr_startup_rate_reduction.

gfe-relnote: n/a (Add flag counts)
PiperOrigin-RevId: 284428592
Change-Id: I1f5a1164529c43bcffb1655d0d7b32c4f41b5b79

quic/core/congestion_control/bbr_sender.cc

diff --git a/quic/core/congestion_control/bbr_sender.cc b/quic/core/congestion_control/bbr_sender.cc
index 0096ca5..8441455 100644
--- a/quic/core/congestion_control/bbr_sender.cc
+++ b/quic/core/congestion_control/bbr_sender.cc
@@ -270,12 +270,14 @@
   }
   if (GetQuicReloadableFlag(quic_bbr_startup_rate_reduction) &&
       config.HasClientRequestedIndependentOption(kBBS4, perspective)) {
+    QUIC_RELOADABLE_FLAG_COUNT_N(quic_bbr_startup_rate_reduction, 1, 2);
     rate_based_startup_ = true;
     // Hits 1.25x pacing multiplier when ~2/3 CWND is lost.
     startup_rate_reduction_multiplier_ = 1;
   }
   if (GetQuicReloadableFlag(quic_bbr_startup_rate_reduction) &&
       config.HasClientRequestedIndependentOption(kBBS5, perspective)) {
+    QUIC_RELOADABLE_FLAG_COUNT_N(quic_bbr_startup_rate_reduction, 2, 2);
     rate_based_startup_ = true;
     // Hits 1.25x pacing multiplier when ~1/3 CWND is lost.
     startup_rate_reduction_multiplier_ = 2;