gfe-relnote: In QUIC, rename handshake_confirmed in handshaker to one_rtt_keys_available to make it clearer and more informative. Renaming only, not protected.

Not rename it to handshake_complete, as in QUIC crypto server side, handshake complete is slightly different than one_rtt_keys_available.

PiperOrigin-RevId: 289682542
Change-Id: I87e1e4925f4916166afe2bac2a055a207de1025a
diff --git a/quic/core/tls_client_handshaker.h b/quic/core/tls_client_handshaker.h
index 83a1975..14ef352 100644
--- a/quic/core/tls_client_handshaker.h
+++ b/quic/core/tls_client_handshaker.h
@@ -45,7 +45,7 @@
 
   // From QuicCryptoClientStream::HandshakerInterface and TlsHandshaker
   bool encryption_established() const override;
-  bool handshake_confirmed() const override;
+  bool one_rtt_keys_available() const override;
   const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
       const override;
   CryptoMessageParser* crypto_message_parser() override;
@@ -133,7 +133,7 @@
   std::string cert_verify_error_details_;
 
   bool encryption_established_ = false;
-  bool handshake_confirmed_ = false;
+  bool one_rtt_keys_available_ = false;
   QuicReferenceCountedPointer<QuicCryptoNegotiatedParameters>
       crypto_negotiated_params_;