Add a PacketOptions struct to webrtc::Transport.

webrtc/test/layer_filtering_transport.cc

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 15 matching lines @@
     uint8_t tl_discard_threshold,
     uint8_t sl_discard_threshold)
     : test::DirectTransport(config),
       vp8_video_payload_type_(vp8_video_payload_type),
       vp9_video_payload_type_(vp9_video_payload_type),
       tl_discard_threshold_(tl_discard_threshold),
       sl_discard_threshold_(sl_discard_threshold),
       current_seq_num_(10000) {
 }  // TODO(ivica): random seq num?
 
-bool LayerFilteringTransport::SendRtp(const uint8_t* packet, size_t length) {
+bool LayerFilteringTransport::SendRtp(const uint8_t* packet,
+                                      size_t length,
+                                      const PacketOptions& options) {
   if (tl_discard_threshold_ == 0 && sl_discard_threshold_ == 0) {
     // Nothing to change, forward the packet immediately.
-    return test::DirectTransport::SendRtp(packet, length);
+    return test::DirectTransport::SendRtp(packet, length, options);
   }
 
   bool set_marker_bit = false;
   rtc::scoped_ptr<RtpHeaderParser> parser(RtpHeaderParser::Create());
   RTPHeader header;
   parser->Parse(packet, length, &header);
 
   if (header.payloadType == vp8_video_payload_type_ ||
       header.payloadType == vp9_video_payload_type_) {
     const uint8_t* payload = packet + header.headerLength;
@@ skipping 36 matching lines @@
   // We are discarding some of the packets (specifically, whole layers), so
   // make sure the marker bit is set properly, and that sequence numbers are
   // continuous.
   if (set_marker_bit) {
     temp_buffer[1] |= kRtpMarkerBitMask;
   }
   ByteWriter<uint16_t>::WriteBigEndian(&temp_buffer[2], current_seq_num_);
 
   ++current_seq_num_;  // Increase only if packet not discarded.
 
-  return test::DirectTransport::SendRtp(temp_buffer, length);
+  return test::DirectTransport::SendRtp(temp_buffer, length, options);
 }
 
 }  // namespace test
 }  // namespace webrtc