replace NULL->nullptr in src/remoting.

remoting/protocol/message_reader.cc

 // Copyright (c) 2012 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/message_reader.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/location.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/single_thread_task_runner.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/socket/socket.h"
 #include "remoting/base/compound_buffer.h"
 #include "remoting/proto/internal.pb.h"
 
 namespace remoting {
 namespace protocol {
 
 static const int kReadBufferSize = 4096;
 
 MessageReader::MessageReader()
-    : socket_(NULL),
+    : socket_(nullptr),
       read_pending_(false),
       pending_messages_(0),
       closed_(false),
       weak_factory_(this) {
 }
 
 void MessageReader::Init(net::Socket* socket,
                          const MessageReceivedCallback& callback) {
   DCHECK(CalledOnValidThread());
   message_received_callback_ = callback;
@@ skipping 77 matching lines @@
   DCHECK(CalledOnValidThread());
   pending_messages_--;
   DCHECK_GE(pending_messages_, 0);
 
   // Start next read if necessary.
   DoRead();
 }
 
 }  // namespace protocol
 }  // namespace remoting