gfe-relnote: Call SetDefaultEncryptionLevel after setting crypto_negotiated_params in TlsServerHandshaker and TlsClientHandshaker. Protected by disabled QUIC versions.

Also add a QUIC_BUG in QuicSession::SetDefaultEncryptionLevel to check this condition.

This fixes a DCHECK failure in chrome in which the handshake completes, but GetSSLInfo fails because the cipher suite is not yet set.

https://bugs.chromium.org/p/chromium/issues/detail?id=1032263

PiperOrigin-RevId: 286011546
Change-Id: Ie9e03fa5cf6e3c346181435d45f362de10dc7083

quic/core/tls_client_handshaker.cc

diff --git a/quic/core/tls_client_handshaker.cc b/quic/core/tls_client_handshaker.cc
index b027004..5d9ffd4 100644
--- a/quic/core/tls_client_handshaker.cc
+++ b/quic/core/tls_client_handshaker.cc
@@ -337,7 +337,6 @@
 
   encryption_established_ = true;
   handshake_confirmed_ = true;
-  delegate()->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
 
   // Fill crypto_negotiated_params_:
   const SSL_CIPHER* cipher = SSL_get_current_cipher(ssl());
@@ -347,6 +346,8 @@
   crypto_negotiated_params_->key_exchange_group = SSL_get_curve_id(ssl());
   crypto_negotiated_params_->peer_signature_algorithm =
       SSL_get_peer_signature_algorithm(ssl());
+
+  delegate()->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
   // TODO(fayang): Replace this with DiscardOldKeys(ENCRYPTION_HANDSHAKE) when
   // handshake key discarding settles down.
   delegate()->NeuterHandshakeData();