Deprecate gfe2_reloadable_flag_quic_allow_client_enabled_bbr_v2.

PiperOrigin-RevId: 863046303

Author: ianswett

quiche/common/quiche_feature_flags_list.h

@@ -12,7 +12,6 @@ QUICHE_FLAG(bool, quiche_reloadable_flag_enable_h3_origin_frame, false, true, "I
 QUICHE_FLAG(bool, quiche_reloadable_flag_http2_avoid_decompose_representation, false, false, "If true, HPACK encoding will use a different iteration method that avoids unnecessary copies and string splitting.")
 QUICHE_FLAG(bool, quiche_reloadable_flag_quic_act_upon_invalid_header, true, true, "If true, reject or send error response code upon receiving invalid request or response headers.")
 QUICHE_FLAG(bool, quiche_reloadable_flag_quic_add_stream_info_to_idle_close_detail, false, true, "If true, include stream information in idle timeout connection close detail.")
-QUICHE_FLAG(bool, quiche_reloadable_flag_quic_allow_client_enabled_bbr_v2, true, true, "If true, allow client to enable BBRv2 on server via connection option 'B2ON'.")
 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/quic/core/http/end_to_end_test.cc

@@ -209,10 +209,6 @@ std::vector<TestParams> GetTestParams(
   std::vector<int> connection_id_lengths{-1, kLongConnectionIdLength};
   for (auto connection_id_length : connection_id_lengths) {
     for (const QuicTag congestion_control_tag : {kTBBR, kQBIC, kB2ON}) {
-      if (!GetQuicReloadableFlag(quic_allow_client_enabled_bbr_v2) &&
-          congestion_control_tag == kB2ON) {
-        continue;
-      }
       for (const ParsedQuicVersion& version : CurrentSupportedVersions()) {
         if (connection_id_length == -1 || version.IsIetfQuic()) {
           params.push_back(TestParams(version, congestion_control_tag,

quiche/quic/core/quic_sent_packet_manager.cc

@@ -153,9 +153,7 @@ void QuicSentPacketManager::SetFromConfig(const QuicConfig& config) {
   if (config.HasClientRequestedIndependentOption(kTBBR, perspective)) {
     SetSendAlgorithm(kBBR);
   }
-  if (GetQuicReloadableFlag(quic_allow_client_enabled_bbr_v2) &&
-      config.HasClientRequestedIndependentOption(kB2ON, perspective)) {
-    QUIC_RELOADABLE_FLAG_COUNT(quic_allow_client_enabled_bbr_v2);
+  if (config.HasClientRequestedIndependentOption(kB2ON, perspective)) {
     SetSendAlgorithm(kBBRv2);
   }