gfe-relnote: In QUIC sent packet manager, replace handshake_confirmed_ and forward_secure_packet_acked_ with handshake_state_. No functional change expected. Not protected.

Also rename QuicConnection::IsHandshakeConfirmed to QuicConnection::IsHandshakeComplete.

PiperOrigin-RevId: 281069350
Change-Id: Id40366a9148add245798b1805ae5f1e3a46d5fc6
diff --git a/quic/core/quic_dispatcher.cc b/quic/core/quic_dispatcher.cc
index 91d9b69..31faade 100644
--- a/quic/core/quic_dispatcher.cc
+++ b/quic/core/quic_dispatcher.cc
@@ -578,7 +578,7 @@
       !connection->termination_packets()->empty()) {
     action = QuicTimeWaitListManager::SEND_TERMINATION_PACKETS;
   } else {
-    if (!connection->IsHandshakeConfirmed()) {
+    if (!connection->IsHandshakeComplete()) {
       if (!VersionHasIetfInvariantHeader(connection->transport_version())) {
         QUIC_CODE_COUNT(gquic_add_to_time_wait_list_with_handshake_failed);
       } else {