Clean up QuicPacketCreatorTest.

gfe-relnote: n/a. test only.
PiperOrigin-RevId: 276096857
Change-Id: I34982aac4a59e4270834eace35aee1223c086283

quic/core/frames/quic_stream_frame.h

diff --git a/quic/core/frames/quic_stream_frame.h b/quic/core/frames/quic_stream_frame.h
index 6cd510d..5e7439d 100644
--- a/quic/core/frames/quic_stream_frame.h
+++ b/quic/core/frames/quic_stream_frame.h
@@ -31,6 +31,8 @@
   friend QUIC_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
                                                       const QuicStreamFrame& s);
 
+  bool operator==(const QuicStreamFrame& rhs) const;
+
   bool fin;
   QuicPacketLength data_length;
   QuicStreamId stream_id;