Cast: merge InsertCoded{Audio,Video}Frame into InsertFrame

media/cast/net/cast_transport_sender.h

Index: media/cast/net/cast_transport_sender.h
diff --git a/media/cast/net/cast_transport_sender.h b/media/cast/net/cast_transport_sender.h
index 9c75d12275372c5041f1ffe2efd8663daf3b9c99..b3d5c701ee697ec8f41bfa356c100d6436773c67 100644
--- a/media/cast/net/cast_transport_sender.h
+++ b/media/cast/net/cast_transport_sender.h
@@ -70,11 +70,9 @@ class CastTransportSender : public base::NonThreadSafe {
                                const RtcpCastMessageCallback& cast_message_cb,
                                const RtcpRttCallback& rtt_cb) = 0;
 
-  // The following two functions handle the encoded media frames (audio and
-  // video) to be processed.
-  // Frames will be encrypted, packetized and transmitted to the network.
-  virtual void InsertCodedAudioFrame(const EncodedFrame& audio_frame) = 0;
-  virtual void InsertCodedVideoFrame(const EncodedFrame& video_frame) = 0;
+  // Encrypt, packetize and transmit |frame|. |ssrc| must refer to a
+  // a channel already established with InitializeAudio / InitializeVideo.
+  virtual void InsertFrame(uint32 ssrc, const EncodedFrame& frame) = 0;
 
   // Sends a RTCP sender report to the receiver.
   // |ssrc| is the SSRC for this report.