Replacing NULL with nullptr

components/copresence/mediums/audio/audio_player_impl.cc

 // Copyright 2014 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 "components/copresence/mediums/audio/audio_player_impl.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 11 matching lines @@
 const int kDefaultFrameCount = 1024;
 const double kOutputVolumePercent = 1.0f;
 
 }  // namespace
 
 namespace copresence {
 
 // Public methods.
 
 AudioPlayerImpl::AudioPlayerImpl()
-    : is_playing_(false), stream_(NULL), frame_index_(0) {
+    : is_playing_(false), stream_(nullptr), frame_index_(0) {
 }
 
 AudioPlayerImpl::~AudioPlayerImpl() {
 }
 
 void AudioPlayerImpl::Initialize() {
   media::AudioManager::Get()->GetTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&AudioPlayerImpl::InitializeOnAudioThread,
                  base::Unretained(this)));
@@ skipping 37 matching lines @@
                           media::CHANNEL_LAYOUT_MONO,
                           kDefaultSampleRate,
                           kDefaultBitsPerSample,
                           kDefaultFrameCount),
                       std::string());
 
   if (!stream_ || !stream_->Open()) {
     LOG(ERROR) << "Failed to open an output stream.";
     if (stream_) {
       stream_->Close();
-      stream_ = NULL;
+      stream_ = nullptr;
     }
     return;
   }
   stream_->SetVolume(kOutputVolumePercent);
 }
 
 void AudioPlayerImpl::PlayOnAudioThread(
     const scoped_refptr<media::AudioBusRefCounted>& samples) {
   DCHECK(media::AudioManager::Get()->GetTaskRunner()->BelongsToCurrentThread());
   if (!stream_)
@@ skipping 23 matching lines @@
 }
 
 void AudioPlayerImpl::StopAndCloseOnAudioThread() {
   DCHECK(media::AudioManager::Get()->GetTaskRunner()->BelongsToCurrentThread());
   if (!stream_)
     return;
 
   if (is_playing_)
     stream_->Stop();
   stream_->Close();
-  stream_ = NULL;
+  stream_ = nullptr;
 
   is_playing_ = false;
 }
 
 void AudioPlayerImpl::FinalizeOnAudioThread() {
   DCHECK(media::AudioManager::Get()->GetTaskRunner()->BelongsToCurrentThread());
   StopAndCloseOnAudioThread();
   delete this;
 }
 
@@ skipping 34 matching lines @@
   base::RunLoop rl;
   media::AudioManager::Get()->GetTaskRunner()->PostTaskAndReply(
       FROM_HERE,
       base::Bind(base::IgnoreResult(&AudioPlayerImpl::FlushAudioLoopForTesting),
                  base::Unretained(this)),
       rl.QuitClosure());
   rl.Run();
 }
 
 }  // namespace copresence