diff --git a/quic/core/quic_utils.h b/quic/core/quic_utils.h
index 04858f0..c143154 100644
--- a/quic/core/quic_utils.h
+++ b/quic/core/quic_utils.h
@@ -101,6 +101,9 @@
   static bool IsHandshakeFrame(const QuicFrame& frame,
                                QuicTransportVersion transport_version);
 
+  // Return true if any frame in |frames| is of |type|.
+  static bool ContainsFrameType(const QuicFrames& frames, QuicFrameType type);
+
   // Returns packet state corresponding to |retransmission_type|.
   static SentPacketState RetransmissionTypeToPacketState(
       TransmissionType retransmission_type);