QUIC - FieldTrial parameters not do PreConnect if QUIC can do 0RTT.

chrome/browser/io_thread_unittest.cc

Index: chrome/browser/io_thread_unittest.cc
diff --git a/chrome/browser/io_thread_unittest.cc b/chrome/browser/io_thread_unittest.cc
index ab59e6d786429a2c989ec562b835779f4b7c3b05..cb11582eca8a40b64f15b00c9ad604f69fa8765c 100644
--- a/chrome/browser/io_thread_unittest.cc
+++ b/chrome/browser/io_thread_unittest.cc
@@ -200,6 +200,7 @@ TEST_F(IOThreadTest, EnableQuicFromFieldTrialGroup) {
   EXPECT_FALSE(params.quic_close_sessions_on_ip_change);
   EXPECT_EQ(net::kIdleConnectionTimeoutSeconds,
             params.quic_idle_connection_timeout_seconds);
+  EXPECT_FALSE(params.quic_disable_preconnect_if_0rtt);
   EXPECT_FALSE(IOThread::ShouldEnableQuicForDataReductionProxy());
 }
 
@@ -305,6 +306,15 @@ TEST_F(IOThreadTest, QuicIdleConnectionTimeoutSecondsFieldTrialParams) {
   EXPECT_EQ(300, params.quic_idle_connection_timeout_seconds);
 }
 
+TEST_F(IOThreadTest, QuicDisablePreConnectIfZeroRtt) {
+  field_trial_group_ = "Enabled";
+  field_trial_params_["disable_preconnect_if_0rtt"] = "true";
+  ConfigureQuicGlobals();
+  net::HttpNetworkSession::Params params;
+  InitializeNetworkSessionParams(&params);
+  EXPECT_TRUE(params.quic_disable_preconnect_if_0rtt);
+}
+
 TEST_F(IOThreadTest, PacketLengthFromFieldTrialParams) {
   field_trial_group_ = "Enabled";
   field_trial_params_["max_packet_length"] = "1450";