gfe-relnote: In QUIC, add OnOneRttPacketAckowledged to TLS handshaker, and this is used to allow client mark handshake confirmed when handshake done frame is not supported. Not affecting prod, not protected.

PiperOrigin-RevId: 291363354
Change-Id: I2aa500244b1e443e17bc4585e983c666d5782afa
diff --git a/quic/core/quic_crypto_client_stream.h b/quic/core/quic_crypto_client_stream.h
index fd81259..01f9612 100644
--- a/quic/core/quic_crypto_client_stream.h
+++ b/quic/core/quic_crypto_client_stream.h
@@ -121,6 +121,9 @@
     // Returns current handshake state.
     virtual HandshakeState GetHandshakeState() const = 0;
 
+    // Called when a 1RTT packet has been acknowledged.
+    virtual void OnOneRttPacketAcknowledged() = 0;
+
     // Called when handshake done has been received.
     virtual void OnHandshakeDoneReceived() = 0;
   };
@@ -168,6 +171,7 @@
       const override;
   CryptoMessageParser* crypto_message_parser() override;
   void OnPacketDecrypted(EncryptionLevel /*level*/) override {}
+  void OnOneRttPacketAcknowledged() override;
   void OnHandshakeDoneReceived() override;
   HandshakeState GetHandshakeState() const override;
   size_t BufferSizeLimitForLevel(EncryptionLevel level) const override;