Add a PacketOptions struct to webrtc::Transport.

webrtc/call/transport_adapter.cc

Index: webrtc/call/transport_adapter.cc
diff --git a/webrtc/call/transport_adapter.cc b/webrtc/call/transport_adapter.cc
index e57591abfea76b335c3e1fa970f8a318d7619bd7..5e59b7b70000152001e5770226254cb99d35edf5 100644
--- a/webrtc/call/transport_adapter.cc
+++ b/webrtc/call/transport_adapter.cc
@@ -20,11 +20,13 @@ TransportAdapter::TransportAdapter(Transport* transport)
   RTC_DCHECK(nullptr != transport);
 }
 
-bool TransportAdapter::SendRtp(const uint8_t* packet, size_t length) {
+bool TransportAdapter::SendRtp(const uint8_t* packet,
+                               size_t length,
+                               const PacketOptions& options) {
   if (enabled_.Value() == 0)
     return false;
 
-  return transport_->SendRtp(packet, length);
+  return transport_->SendRtp(packet, length, options);
 }
 
 bool TransportAdapter::SendRtcp(const uint8_t* packet, size_t length) {