Set quic_flush_pending_frames_and_padding_bytes_on_migration to true in Chrome.

Also fix typo in name of associated unittest.

PiperOrigin-RevId: 405960468

quic/core/quic_connection_test.cc

diff --git a/quic/core/quic_connection_test.cc b/quic/core/quic_connection_test.cc
index 1b37830..946bda9 100644
--- a/quic/core/quic_connection_test.cc
+++ b/quic/core/quic_connection_test.cc
@@ -2078,7 +2078,7 @@
 }
 
 // Regression test for b/200020764.
-TEST_P(QuicConnectionTest, ConnetcionMigrationWithPendingPaddingBytes) {
+TEST_P(QuicConnectionTest, ConnectionMigrationWithPendingPaddingBytes) {
   // TODO(haoyuewang) Move these test setup code to a common member function.
   set_perspective(Perspective::IS_SERVER);
   if (!connection_.connection_migration_use_new_cid()) {

quic/core/quic_flags_list.h

diff --git a/quic/core/quic_flags_list.h b/quic/core/quic_flags_list.h
index 77d96ec..7f030a3 100644
--- a/quic/core/quic_flags_list.h
+++ b/quic/core/quic_flags_list.h
@@ -76,7 +76,7 @@
 // If true, enable server retransmittable on wire PING.
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_enable_server_on_wire_ping, true)
 // If true, flush pending frames as well as pending padding bytes on connection migration.
-QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_flush_pending_frames_and_padding_bytes_on_migration, false)
+QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_flush_pending_frames_and_padding_bytes_on_migration, true)
 // If true, ietf connection migration is no longer conditioned on connection option RVCM.
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_remove_connection_migration_connection_option, true)
 // If true, ignore peer_max_ack_delay during handshake.