Deprecate FLAG_quic_use_new_tcp_sender

net/quic/congestion_control/send_algorithm_interface.cc

Index: net/quic/congestion_control/send_algorithm_interface.cc
diff --git a/net/quic/congestion_control/send_algorithm_interface.cc b/net/quic/congestion_control/send_algorithm_interface.cc
index 20821a610226908b40c4462bb318adb672bd78b3..83de14f237763176f1e2fd8f9246bfeb5121740c 100644
--- a/net/quic/congestion_control/send_algorithm_interface.cc
+++ b/net/quic/congestion_control/send_algorithm_interface.cc
@@ -4,8 +4,6 @@
 
 #include "net/quic/congestion_control/send_algorithm_interface.h"
 
-#include "net/quic/congestion_control/tcp_cubic_bytes_sender.h"
-#include "net/quic/congestion_control/tcp_cubic_sender.h"
 #include "net/quic/congestion_control/tcp_cubic_sender_bytes.h"
 #include "net/quic/congestion_control/tcp_cubic_sender_packets.h"
 #include "net/quic/quic_flags.h"
@@ -27,39 +25,19 @@ SendAlgorithmInterface* SendAlgorithmInterface::Create(
       kDefaultTCPMSS;
   switch (congestion_control_type) {
     case kCubic:
-      if (FLAGS_quic_use_new_tcp_sender) {
-        return new TcpCubicSenderPackets(
-            clock, rtt_stats, false /* don't use Reno */,
-            initial_congestion_window, max_congestion_window, stats);
-      }
-      return new TcpCubicSender(clock, rtt_stats, false /* don't use Reno */,
-                                initial_congestion_window,
-                                max_congestion_window, stats);
+      return new TcpCubicSenderPackets(
+          clock, rtt_stats, false /* don't use Reno */,
+          initial_congestion_window, max_congestion_window, stats);
     case kCubicBytes:
-      if (FLAGS_quic_use_new_tcp_sender) {
-        return new TcpCubicSenderBytes(
-            clock, rtt_stats, false /* don't use Reno */,
-            initial_congestion_window, max_congestion_window, stats);
-      }
-      return new TcpCubicBytesSender(
+      return new TcpCubicSenderBytes(
           clock, rtt_stats, false /* don't use Reno */,
           initial_congestion_window, max_congestion_window, stats);
     case kReno:
-      if (FLAGS_quic_use_new_tcp_sender) {
-        return new TcpCubicSenderPackets(clock, rtt_stats, true /* use Reno */,
-                                         initial_congestion_window,
-                                         max_congestion_window, stats);
-      }
-      return new TcpCubicSender(clock, rtt_stats, true /* use Reno */,
-                                initial_congestion_window,
-                                max_congestion_window, stats);
-    case kRenoBytes:
-      if (FLAGS_quic_use_new_tcp_sender) {
-        return new TcpCubicSenderBytes(clock, rtt_stats, true /* use Reno */,
+      return new TcpCubicSenderPackets(clock, rtt_stats, true /* use Reno */,
                                        initial_congestion_window,
                                        max_congestion_window, stats);
-      }
-      return new TcpCubicBytesSender(clock, rtt_stats, true /* use Reno */,
+    case kRenoBytes:
+      return new TcpCubicSenderBytes(clock, rtt_stats, true /* use Reno */,
                                      initial_congestion_window,
                                      max_congestion_window, stats);
     case kBBR: