Wire up transport sequence number / send time callbacks to webrtc via libjingle.

talk/app/webrtc/mediacontroller.h

Index: talk/app/webrtc/mediacontroller.h
diff --git a/talk/app/webrtc/mediacontroller.h b/talk/app/webrtc/mediacontroller.h
index 68798515d00984c586a88fbf8346f75ca96f309b..db0a1f1257dc5c81f35d5546d709c31f86130bc3 100644
--- a/talk/app/webrtc/mediacontroller.h
+++ b/talk/app/webrtc/mediacontroller.h
@@ -29,6 +29,11 @@
 #define TALK_APP_WEBRTC_MEDIACONTROLLER_H_
 
 #include "webrtc/base/thread.h"
+#include "webrtc/common_types.h"
+
+namespace cricket {
+class TransportChannel;
+}  // namespace cricket
 
 namespace webrtc {
 class Call;
@@ -43,6 +48,10 @@ class MediaControllerInterface {
 
   virtual ~MediaControllerInterface() {}
   virtual webrtc::Call* call_w() = 0;
+  virtual void ConnectTransportChannel(
+      cricket::TransportChannel* transport_channel) = 0;

[pthatcher1, 2015/10/07 16:44:38]

We might want to name these more explicitly:  ConnectToSignalSentPacket.  Also,
it has to be called on the worker thread, so it should be "_w".

[stefan-webrtc, 2015/10/08 12:53:45]

Done.

+  virtual void DisconnectTransportChannel(
+      cricket::TransportChannel* transport_channel) = 0;

[pthatcher1, 2015/10/07 16:44:38]

Can you put a comment explaining what these do, when they should be called, and
a TODO that we plan to remove them?

[stefan-webrtc, 2015/10/08 12:53:45]

Done.

 };
 }  // namespace webrtc