Switch remoting/protocol to new callbacks

remoting/protocol/rtcp_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/rtcp_writer.h"
 
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "remoting/base/compound_buffer.h"
 #include "remoting/protocol/buffered_socket_writer.h"
 #include "remoting/protocol/rtp_utils.h"
 
 namespace remoting {
 namespace protocol {
 
 RtcpWriter::RtcpWriter(base::MessageLoopProxy* message_loop)
     : buffered_rtcp_writer_(new BufferedDatagramWriter(message_loop)) {
 }
 
 RtcpWriter::~RtcpWriter() {
 }
 
 void RtcpWriter::Close() {
   buffered_rtcp_writer_->Close();
 }
 
 // Initializes the writer. Must be called on the thread the sockets
 // belong to.
 void RtcpWriter::Init(net::Socket* socket) {
-  buffered_rtcp_writer_->Init(socket, NULL);
+  buffered_rtcp_writer_->Init(
+      socket, BufferedSocketWriter::WriteFailedCallback());
 }
 
 void RtcpWriter::SendReport(const RtcpReceiverReport& report) {
   int size = GetRtcpReceiverReportSize(report);
   net::IOBufferWithSize* buffer = new net::IOBufferWithSize(size);
 
   PackRtcpReceiverReport(report, reinterpret_cast<uint8*>(buffer->data()),
                          size);
 
-  buffered_rtcp_writer_->Write(buffer, NULL);
+  buffered_rtcp_writer_->Write(buffer, base::Closure());
 }
 
 }  // namespace protocol
 }  // namespace remoting