Add a PacketOptions struct to webrtc::Transport.

webrtc/test/direct_transport.h

Index: webrtc/test/direct_transport.h
diff --git a/webrtc/test/direct_transport.h b/webrtc/test/direct_transport.h
index a0aaecbb7e222a02e2d9672937772832365c7069..1c6f937401dac9012f80b7e8342269541117c018 100644
--- a/webrtc/test/direct_transport.h
+++ b/webrtc/test/direct_transport.h
@@ -39,7 +39,9 @@ class DirectTransport : public Transport {
   virtual void StopSending();
   virtual void SetReceiver(PacketReceiver* receiver);
 
-  bool SendRtp(const uint8_t* data, size_t length) override;
+  bool SendRtp(const uint8_t* data,
+               size_t length,
+               const PacketOptions& options) override;
   bool SendRtcp(const uint8_t* data, size_t length) override;
 
  private: