gfe-relnote: In QUIC, add unused HANDSHAKE encryption level. No functional change expected, not protected.

PiperOrigin-RevId: 238661434
Change-Id: Ia1e1d2be2d6a46f3981afae6628877242fbabf24
diff --git a/quic/core/quic_packet_creator_test.cc b/quic/core/quic_packet_creator_test.cc
index 255c530..a781c51 100644
--- a/quic/core/quic_packet_creator_test.cc
+++ b/quic/core/quic_packet_creator_test.cc
@@ -147,6 +147,8 @@
         creator_(connection_id_, &client_framer_, &delegate_, &producer_),
         serialized_packet_(creator_.NoPacket()) {
     EXPECT_CALL(delegate_, GetPacketBuffer()).WillRepeatedly(Return(nullptr));
+    creator_.SetEncrypter(ENCRYPTION_HANDSHAKE, QuicMakeUnique<NullEncrypter>(
+                                                    Perspective::IS_CLIENT));
     creator_.SetEncrypter(ENCRYPTION_ZERO_RTT, QuicMakeUnique<NullEncrypter>(
                                                    Perspective::IS_CLIENT));
     creator_.SetEncrypter(