gfe-relnote: Let QUIC client drops initial key when a handshake packet has been sent. protected by existing gfe2_reloadable_flag_quic_enable_version_draft_25_v3 and gfe2_reloadable_flag_quic_enable_version_draft_27.

PiperOrigin-RevId: 308882771
Change-Id: Icbae03467ebc7845dacb8d6398cd2657dcf11632
diff --git a/quic/core/http/quic_spdy_stream_test.cc b/quic/core/http/quic_spdy_stream_test.cc
index cdee5ef..6535328 100644
--- a/quic/core/http/quic_spdy_stream_test.cc
+++ b/quic/core/http/quic_spdy_stream_test.cc
@@ -124,6 +124,7 @@
   }
   void OnPacketDecrypted(EncryptionLevel /*level*/) override {}
   void OnOneRttPacketAcknowledged() override {}
+  void OnHandshakePacketSent() override {}
   void OnHandshakeDoneReceived() override {}
 
   MOCK_METHOD(void, OnCanWrite, (), (override));