Remove event_channel() and control_channel() from Session interface.

remoting/protocol/rtp_video_writer.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/protocol/rtp_video_writer.h"
 
 #include "base/bind.h"
 #include "base/task.h"
 #include "net/base/io_buffer.h"
 #include "remoting/base/compound_buffer.h"
@@ skipping 26 matching lines @@
   session->CreateDatagramChannel(
       kVideoRtpChannelName,
       base::Bind(&RtpVideoWriter::OnChannelReady,
                  base::Unretained(this), true));
   session->CreateDatagramChannel(
       kVideoRtcpChannelName,
       base::Bind(&RtpVideoWriter::OnChannelReady,
                  base::Unretained(this), false));
 }
 
+bool RtpVideoWriter::is_connected() {
+  return rtp_channel_.get() && rtcp_channel_.get();
+}
+
 void RtpVideoWriter::OnChannelReady(bool rtp, net::Socket* socket) {
   if (!socket) {
     if (!initialized_) {
       initialized_ = true;
       initialized_callback_.Run(false);
     }
     return;
   }
 
   if (rtp) {
@@ skipping 81 matching lines @@
 
   done.Run();
 }
 
 int RtpVideoWriter::GetPendingPackets() {
   return rtp_writer_.GetPendingPackets();
 }
 
 }  // namespace protocol
 }  // namespace remoting