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

remoting/protocol/protobuf_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/protobuf_video_writer.h"
 
 #include "base/bind.h"
 #include "base/task.h"
 #include "net/socket/stream_socket.h"
 #include "remoting/base/constants.h"
@@ skipping 16 matching lines @@
 void ProtobufVideoWriter::Init(protocol::Session* session,
                                const InitializedCallback& callback) {
   session_ = session;
   initialized_callback_ = callback;
 
   session_->CreateStreamChannel(
       kVideoChannelName,
       base::Bind(&ProtobufVideoWriter::OnChannelReady, base::Unretained(this)));
 }
 
+bool ProtobufVideoWriter::is_connected() {
+  return channel_.get() != NULL;
+}
+
 void ProtobufVideoWriter::OnChannelReady(net::StreamSocket* socket) {
   if (!socket) {
     initialized_callback_.Run(false);
     return;
   }
 
   DCHECK(!channel_.get());
   channel_.reset(socket);
   // TODO(sergeyu): Provide WriteFailedCallback for the buffered writer.
   buffered_writer_->Init(socket, BufferedSocketWriter::WriteFailedCallback());
@@ skipping 14 matching lines @@
                                              const base::Closure& done) {
   buffered_writer_->Write(SerializeAndFrameMessage(*packet), done);
 }
 
 int ProtobufVideoWriter::GetPendingPackets() {
   return buffered_writer_->GetBufferChunks();
 }
 
 }  // namespace protocol
 }  // namespace remoting