Server push cancellation: add a finch trial parameter

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 799f9ca4023caed782d5d699aa12b49b2186f45e..aa9e4c614ff7f5159496c394d894de0362cfd391 100644
--- a/components/network_session_configurator/network_session_configurator_unittest.cc
+++ b/components/network_session_configurator/network_session_configurator_unittest.cc
@@ -75,6 +75,7 @@ TEST_F(NetworkSessionConfiguratorTest, EnableQuicFromFieldTrialGroup) {
   EXPECT_FALSE(params_.quic_disable_connection_pooling);
   EXPECT_EQ(0.25f, params_.quic_load_server_info_timeout_srtt_multiplier);
   EXPECT_FALSE(params_.quic_enable_connection_racing);
+  EXPECT_FALSE(params_.enable_server_push_cancellation);
   EXPECT_FALSE(params_.quic_enable_non_blocking_io);
   EXPECT_FALSE(params_.quic_disable_disk_cache);
   EXPECT_FALSE(params_.quic_prefer_aes);
@@ -222,6 +223,17 @@ TEST_F(NetworkSessionConfiguratorTest, QuicRaceCertVerification) {
   EXPECT_TRUE(params_.quic_race_cert_verification);
 }
 
+TEST_F(NetworkSessionConfiguratorTest, EnableServerPushCancellation) {
+  std::map<std::string, std::string> field_trial_params;
+  field_trial_params["enable_server_push_cancellation"] = "true";
+  variations::AssociateVariationParams("QUIC", "Enabled", field_trial_params);
+  base::FieldTrialList::CreateFieldTrial("QUIC", "Enabled");
+
+  ParseFieldTrials();
+
+  EXPECT_TRUE(params_.enable_server_push_cancellation);
+}
+
 TEST_F(NetworkSessionConfiguratorTest, QuicDoNotFragment) {
   std::map<std::string, std::string> field_trial_params;
   field_trial_params["do_not_fragment"] = "true";