Add a new enable_nonblocking_io field trial param for QUIC

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 e5e56d22b98c58fbd9a920be73710f07493ea1b9..39f6b68f307d522df6ddcf61f0f51b3aaa97024e 100644
--- a/chrome/browser/io_thread_unittest.cc
+++ b/chrome/browser/io_thread_unittest.cc
@@ -139,6 +139,7 @@ TEST_F(IOThreadTest, EnableQuicFromFieldTrialGroup) {
   EXPECT_EQ(0.0f, params.quic_load_server_info_timeout_srtt_multiplier);
   EXPECT_FALSE(params.quic_enable_truncated_connection_ids);
   EXPECT_FALSE(params.quic_enable_connection_racing);
+  EXPECT_FALSE(params.quic_enable_nonblocking_io);
   EXPECT_FALSE(params.quic_disable_disk_cache);
   EXPECT_FALSE(IOThread::ShouldEnableQuicForDataReductionProxy());
 }
@@ -328,6 +329,15 @@ TEST_F(IOThreadTest, QuicEnableConnectionRacing) {
   EXPECT_TRUE(params.quic_enable_connection_racing);
 }
 
+TEST_F(IOThreadTest, QuicEnableNonblockingIO) {
+  field_trial_group_ = "Enabled";
+  field_trial_params_["enable_nonblocking_io"] = "true";
+  ConfigureQuicGlobals();
+  net::HttpNetworkSession::Params params;
+  InitializeNetworkSessionParams(&params);
+  EXPECT_TRUE(params.quic_enable_nonblocking_io);
+}
+
 TEST_F(IOThreadTest, QuicDisableDiskCache) {
   field_trial_group_ = "Enabled";
   field_trial_params_["disable_disk_cache"] = "true";