Add a kBYTE congestion option to QUIC to negotiate the TcpCubicBytesSender.

net/quic/quic_sent_packet_manager_test.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/quic_sent_packet_manager.h"
 
 #include "base/stl_util.h"
 #include "net/quic/quic_flags.h"
 #include "net/quic/test_tools/quic_config_peer.h"
 #include "net/quic/test_tools/quic_sent_packet_manager_peer.h"
@@ skipping 1454 matching lines @@
 #if 0
   options.clear();
   options.push_back(kTBBR);
   QuicConfigPeer::SetReceivedConnectionOptions(&config, options);
   EXPECT_CALL(*network_change_visitor_, OnCongestionWindowChange());
   EXPECT_CALL(*network_change_visitor_, OnRttChange());
   manager_.SetFromConfig(config);
   EXPECT_EQ(kBBR, QuicSentPacketManagerPeer::GetSendAlgorithm(
       manager_)->GetCongestionControlType());
 #endif
+
+  options.clear();
+  options.push_back(kBYTE);
+  QuicConfigPeer::SetReceivedConnectionOptions(&config, options);
+  EXPECT_CALL(*network_change_visitor_, OnCongestionWindowChange());
+  EXPECT_CALL(*network_change_visitor_, OnRttChange());
+  manager_.SetFromConfig(config);
+  EXPECT_EQ(kCubicBytes, QuicSentPacketManagerPeer::GetSendAlgorithm(manager_)
+                             ->GetCongestionControlType());
+
+  options.clear();
+  options.push_back(kRENO);
+  options.push_back(kBYTE);
+  QuicConfigPeer::SetReceivedConnectionOptions(&config, options);
+  EXPECT_CALL(*network_change_visitor_, OnCongestionWindowChange());
+  EXPECT_CALL(*network_change_visitor_, OnRttChange());
+  manager_.SetFromConfig(config);
+  EXPECT_EQ(kRenoBytes, QuicSentPacketManagerPeer::GetSendAlgorithm(manager_)
+                            ->GetCongestionControlType());
 }
 
 TEST_F(QuicSentPacketManagerTest, NegotiateNumConnectionsFromOptions) {
   QuicConfig config;
   QuicTagVector options;
 
   options.push_back(k1CON);
   QuicConfigPeer::SetReceivedConnectionOptions(&config, options);
   EXPECT_CALL(*network_change_visitor_, OnCongestionWindowChange());
   EXPECT_CALL(*network_change_visitor_, OnRttChange());
@@ skipping 180 matching lines @@
 
   EXPECT_CALL(*send_algorithm_, ResumeConnectionState(_));
   manager_.ResumeConnectionState(cached_network_params);
   EXPECT_EQ(kRttMs * kNumMicrosPerMilli,
             static_cast<uint64>(manager_.GetRttStats()->initial_rtt_us()));
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net