gfe-relnote: Enable initial obfuscators in QUIC_VERSION_99. Protected by quic_enable_version_99

PiperOrigin-RevId: 270834093
Change-Id: Ieee9980f6facc222ee700961a4a36791cf28ab39
diff --git a/quic/core/crypto/null_decrypter.h b/quic/core/crypto/null_decrypter.h
index 06c361d..aac25bb 100644
--- a/quic/core/crypto/null_decrypter.h
+++ b/quic/core/crypto/null_decrypter.h
@@ -44,6 +44,7 @@
   std::string GenerateHeaderProtectionMask(
       QuicDataReader* sample_reader) override;
   size_t GetKeySize() const override;
+  size_t GetNoncePrefixSize() const override;
   size_t GetIVSize() const override;
   QuicStringPiece GetKey() const override;
   QuicStringPiece GetNoncePrefix() const override;