replace NULL->nullptr in src/remoting.

remoting/client/audio_decode_scheduler.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/client/audio_decode_scheduler.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "remoting/client/audio_player.h"
@@ skipping 75 matching lines @@
 
   main_task_runner_->PostTask(FROM_HERE, base::Bind(
       &AudioDecodeScheduler::Core::ProcessDecodedPacket, this,
       base::Passed(&decoded_packet), done));
 }
 
 void AudioDecodeScheduler::Core::ProcessDecodedPacket(
     scoped_ptr<AudioPacket> packet,
     const base::Closure& done) {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
-  // Only process |packet| if it is non-NULL.
+  // Only process |packet| if it is non-null.
   if (packet.get() && audio_player_.get())
     audio_player_->ProcessAudioPacket(packet.Pass());
   done.Run();
 }
 
 AudioDecodeScheduler::AudioDecodeScheduler(
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner,
     scoped_ptr<AudioPlayer> audio_player)
     : core_(new Core(main_task_runner, audio_decode_task_runner,
                      audio_player.Pass())) {
 }
 
 AudioDecodeScheduler::~AudioDecodeScheduler() {
   core_->Detach();
 }
 
 void AudioDecodeScheduler::Initialize(const protocol::SessionConfig& config) {
   core_->Initialize(config);
 }
 
 void AudioDecodeScheduler::ProcessAudioPacket(scoped_ptr<AudioPacket> packet,
                                               const base::Closure& done) {
   core_->ProcessAudioPacket(packet.Pass(), done);
 }
 
 }  // namespace remoting