Revert "Revert of QUIC - Race Cert Verification with host resolution if

components/network_session_configurator/network_session_configurator_unittest.cc

Index: components/network_session_configurator/network_session_configurator_unittest.cc
diff --git a/components/network_session_configurator/network_session_configurator_unittest.cc b/components/network_session_configurator/network_session_configurator_unittest.cc
index 604c04614fbeee491e5eaf8870dbff0d4a5893b7..a1876f9b7c920722baf4a219ab1faaf2d18d9bb3 100644
--- a/components/network_session_configurator/network_session_configurator_unittest.cc
+++ b/components/network_session_configurator/network_session_configurator_unittest.cc
@@ -189,6 +189,7 @@ TEST_F(NetworkSessionConfiguratorTest, EnableQuicFromFieldTrialGroup) {
   EXPECT_FALSE(params_.quic_migrate_sessions_on_network_change);
   EXPECT_FALSE(params_.quic_migrate_sessions_early);
   EXPECT_TRUE(params_.quic_host_whitelist.empty());
+  EXPECT_FALSE(params_.quic_race_cert_verification);
 
   net::HttpNetworkSession::Params default_params;
   EXPECT_EQ(default_params.quic_supported_versions,
@@ -588,6 +589,17 @@ TEST_F(NetworkSessionConfiguratorTest, QuicWhitelistFromParams) {
   EXPECT_TRUE(ContainsKey(params_.quic_host_whitelist, "www.example.com"));
 }
 
+TEST_F(NetworkSessionConfiguratorTest, QuicRaceCertVerification) {
+  std::map<std::string, std::string> field_trial_params;
+  field_trial_params["race_cert_verification"] = "true";
+  variations::AssociateVariationParams("QUIC", "Enabled", field_trial_params);
+  base::FieldTrialList::CreateFieldTrial("QUIC", "Enabled");
+
+  ParseFieldTrials();
+
+  EXPECT_TRUE(params_.quic_race_cert_verification);
+}
+
 TEST_F(NetworkSessionConfiguratorTest, QuicDisallowedByPolicy) {
   base::CommandLine::ForCurrentProcess()->AppendSwitch("enable-quic");
   is_quic_allowed_by_policy_ = false;