Allow QUIC pacing and time-based loss detection to be enabled via

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"
 #include "net/quic/test_tools/quic_test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using std::vector;
 using testing::ElementsAre;
 using testing::Pair;
 using testing::Pointwise;
@@ skipping 1296 matching lines @@
   QuicConfig config;
   QuicConfigPeer::SetReceivedLossDetection(&config, kTIME);
   EXPECT_CALL(*send_algorithm_, SetFromConfig(_, _));
   manager_.SetFromConfig(config);
 
   EXPECT_EQ(kTime,
             QuicSentPacketManagerPeer::GetLossAlgorithm(
                 &manager_)->GetLossDetectionType());
 }
 
+TEST_F(QuicSentPacketManagerTest, NegotiateTimeLossDetectionFromOptions) {
+  EXPECT_EQ(kNack,
+            QuicSentPacketManagerPeer::GetLossAlgorithm(
+                &manager_)->GetLossDetectionType());
+
+  QuicConfig config;
+  QuicTagVector options;
+  options.push_back(kTIME);
+  QuicConfigPeer::SetReceivedCongestionOptions(&config, options);
+  EXPECT_CALL(*send_algorithm_, SetFromConfig(_, _));
+  manager_.SetFromConfig(config);
+
+  EXPECT_EQ(kTime,
+            QuicSentPacketManagerPeer::GetLossAlgorithm(
+                &manager_)->GetLossDetectionType());
+}
+
+TEST_F(QuicSentPacketManagerTest, NegotiatePacingFromOptions) {
+  ValueRestore<bool> old_flag(&FLAGS_enable_quic_pacing, true);
+  EXPECT_FALSE(manager_.using_pacing());
+
+  QuicConfig config;
+  QuicTagVector options;
+  options.push_back(kPACE);
+  QuicConfigPeer::SetReceivedCongestionOptions(&config, options);
+  EXPECT_CALL(*send_algorithm_, SetFromConfig(_, _));
+  manager_.SetFromConfig(config);
+
+  EXPECT_TRUE(manager_.using_pacing());
+}
 
 }  // namespace
 }  // namespace test
 }  // namespace net