Add FlexFEC header formatters. (pt. 5)

webrtc/modules/rtp_rtcp/source/ulpfec_header_reader_writer_unittest.cc

Index: webrtc/modules/rtp_rtcp/source/ulpfec_header_reader_writer_unittest.cc
diff --git a/webrtc/modules/rtp_rtcp/source/ulpfec_header_reader_writer_unittest.cc b/webrtc/modules/rtp_rtcp/source/ulpfec_header_reader_writer_unittest.cc
index e33a3b71fdcf8e107816f02f93bd38edf357b2c8..66ec7cebf778501ba2a75461145332acced99cf5 100644
--- a/webrtc/modules/rtp_rtcp/source/ulpfec_header_reader_writer_unittest.cc
+++ b/webrtc/modules/rtp_rtcp/source/ulpfec_header_reader_writer_unittest.cc
@@ -58,8 +58,8 @@ std::unique_ptr<Packet> WriteHeader(const uint8_t* packet_mask,
   for (size_t i = 0; i < written_packet->length; ++i) {
     written_packet->data[i] = i;  // Actual content doesn't matter.
   }
-  writer.FinalizeFecHeader(kMediaStartSeqNum, packet_mask, packet_mask_size,
-                           written_packet.get());
+  writer.FinalizeFecHeader(kMediaSsrc, kMediaStartSeqNum, packet_mask,
+                           packet_mask_size, written_packet.get());
   return written_packet;
 }