Add a convenience method to check for client supplied options in

net/quic/quic_sent_packet_manager.h

Index: net/quic/quic_sent_packet_manager.h
diff --git a/net/quic/quic_sent_packet_manager.h b/net/quic/quic_sent_packet_manager.h
index e726e19e560089caf6738a3ee4ceb0aa39a5612a..dde6e9801f988b601a786c081f918de61e72e0f2 100644
--- a/net/quic/quic_sent_packet_manager.h
+++ b/net/quic/quic_sent_packet_manager.h
@@ -319,6 +319,11 @@ class NET_EXPORT_PRIVATE QuicSentPacketManager {
       const SequenceNumberList& all_transmissions,
       QuicPacketSequenceNumber acked_sequence_number);
 
+  // Returns true if the client is sending or the server has received a
+  // connection option.
+  bool HasClientSentConnectionOption(const QuicConfig& config,
+                                     QuicTag tag) const;
+
   // Newly serialized retransmittable and fec packets are added to this map,
   // which contains owning pointers to any contained frames.  If a packet is
   // retransmitted, this map will contain entries for both the old and the new