Add VideoReader and VideoWriter interfaces.

remoting/protocol/protobuf_video_writer.cc

+// Copyright (c) 2010 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 "remoting/protocol/chromotocol_connection.h"
+#include "remoting/protocol/rtp_writer.h"
+#include "remoting/protocol/util.h"
+
+namespace remoting {
+
+ProtobufVideoWriter::ProtobufVideoWriter() { }
+
+ProtobufVideoWriter::~ProtobufVideoWriter() { }
+
+void ProtobufVideoWriter::Init(ChromotocolConnection* connection) {
+  buffered_writer_ = new BufferedSocketWriter();
+  // TODO(sergeyu): Provide WriteFailedCallback for the buffered writer.
+  buffered_writer_->Init(connection->video_channel(), NULL);
+}
+
+void ProtobufVideoWriter::SendPacket(const VideoPacket& packet) {
+  buffered_writer_->Write(SerializeAndFrameMessage(packet));
+}
+
+int ProtobufVideoWriter::GetPendingPackets() {
+  return buffered_writer_->GetBufferChunks();
+}
+
+
+void ProtobufVideoWriter::Close() {
+  buffered_writer_->Close();
+}
+
+}  // namespace remoting