gfe-relnote: Deprecate gfe2_restart_flag_quic_send_settings_on_write_key_available.

PiperOrigin-RevId: 309055939
Change-Id: Ia10a0edff3b5bfe6e0a42145e94fe6be130ee6d3

quic/core/tls_client_handshaker.cc

diff --git a/quic/core/tls_client_handshaker.cc b/quic/core/tls_client_handshaker.cc
index 9379087..d6435ff 100644
--- a/quic/core/tls_client_handshaker.cc
+++ b/quic/core/tls_client_handshaker.cc
@@ -318,8 +318,7 @@
     EncryptionLevel level,
     const SSL_CIPHER* cipher,
     const std::vector<uint8_t>& write_secret) {
-  if (GetQuicRestartFlag(quic_send_settings_on_write_key_available) &&
-      level == ENCRYPTION_FORWARD_SECURE) {
+  if (level == ENCRYPTION_FORWARD_SECURE) {
     encryption_established_ = true;
   }
   TlsHandshaker::SetWriteSecret(level, cipher, write_secret);
@@ -391,16 +390,14 @@
 void TlsClientHandshaker::FinishHandshake() {
   QUIC_LOG(INFO) << "Client: handshake finished";
   state_ = STATE_HANDSHAKE_COMPLETE;
-  if (GetQuicRestartFlag(quic_send_settings_on_write_key_available)) {
-    // Fill crypto_negotiated_params_:
-    const SSL_CIPHER* cipher = SSL_get_current_cipher(ssl());
-    if (cipher) {
-      crypto_negotiated_params_->cipher_suite = SSL_CIPHER_get_value(cipher);
-    }
-    crypto_negotiated_params_->key_exchange_group = SSL_get_curve_id(ssl());
-    crypto_negotiated_params_->peer_signature_algorithm =
-        SSL_get_peer_signature_algorithm(ssl());
+  // Fill crypto_negotiated_params_:
+  const SSL_CIPHER* cipher = SSL_get_current_cipher(ssl());
+  if (cipher) {
+    crypto_negotiated_params_->cipher_suite = SSL_CIPHER_get_value(cipher);
   }
+  crypto_negotiated_params_->key_exchange_group = SSL_get_curve_id(ssl());
+  crypto_negotiated_params_->peer_signature_algorithm =
+      SSL_get_peer_signature_algorithm(ssl());
 
   std::string error_details;
   if (!ProcessTransportParameters(&error_details)) {
@@ -436,23 +433,7 @@
   session()->OnAlpnSelected(received_alpn_string);
   QUIC_DLOG(INFO) << "Client: server selected ALPN: '" << received_alpn_string
                   << "'";
-
-  if (!GetQuicRestartFlag(quic_send_settings_on_write_key_available)) {
-    encryption_established_ = true;
-  }
   one_rtt_keys_available_ = true;
-
-  if (!GetQuicRestartFlag(quic_send_settings_on_write_key_available)) {
-    // Fill crypto_negotiated_params_:
-    const SSL_CIPHER* cipher = SSL_get_current_cipher(ssl());
-    if (cipher) {
-      crypto_negotiated_params_->cipher_suite = SSL_CIPHER_get_value(cipher);
-    }
-    crypto_negotiated_params_->key_exchange_group = SSL_get_curve_id(ssl());
-    crypto_negotiated_params_->peer_signature_algorithm =
-        SSL_get_peer_signature_algorithm(ssl());
-  }
-
   handshaker_delegate()->OnOneRttKeysAvailable();
 }