Move QuicCryptoServerStream::Helper to QuicCryptoServerStreamBase

gfe-relnote: rename class - no behavior change
PiperOrigin-RevId: 296246242
Change-Id: I68425fe4ba7a2040eed4bf93835639e6f353a406
diff --git a/quic/masque/masque_dispatcher.h b/quic/masque/masque_dispatcher.h
index a5fc4b0..4817b7b 100644
--- a/quic/masque/masque_dispatcher.h
+++ b/quic/masque/masque_dispatcher.h
@@ -22,7 +22,7 @@
       const QuicCryptoServerConfig* crypto_config,
       QuicVersionManager* version_manager,
       std::unique_ptr<QuicConnectionHelperInterface> helper,
-      std::unique_ptr<QuicCryptoServerStream::Helper> session_helper,
+      std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper,
       std::unique_ptr<QuicAlarmFactory> alarm_factory,
       MasqueServerBackend* masque_server_backend,
       uint8_t expected_server_connection_id_length);