Replace deprecated base::NonThreadSafe in media/audio in favor of SequenceChecker.

media/audio/sounds/sounds_manager.cc

Index: media/audio/sounds/sounds_manager.cc
diff --git a/media/audio/sounds/sounds_manager.cc b/media/audio/sounds/sounds_manager.cc
index c678645eae247eb460ae38f35e7c87438fb46b90..46ba140d8b95cb9a080f15dffc2a9e3c1e4aca8a 100644
--- a/media/audio/sounds/sounds_manager.cc
+++ b/media/audio/sounds/sounds_manager.cc
@@ -23,7 +23,9 @@ bool g_initialized_for_testing = false;
 class SoundsManagerImpl : public SoundsManager {
  public:
   SoundsManagerImpl() {}
-  ~SoundsManagerImpl() override { DCHECK(CalledOnValidThread()); }
+  ~SoundsManagerImpl() override {
+    DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
+  }
 
   // SoundsManager implementation:
   bool Initialize(SoundKey key, const base::StringPiece& data) override;
@@ -62,13 +64,13 @@ bool SoundsManagerImpl::Initialize(SoundKey key,
 }
 
 bool SoundsManagerImpl::Play(SoundKey key) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   AudioStreamHandler* handler = GetHandler(key);
   return handler && handler->Play();
 }
 
 bool SoundsManagerImpl::Stop(SoundKey key) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   AudioStreamHandler* handler = GetHandler(key);
   if (!handler)
     return false;
@@ -77,7 +79,7 @@ bool SoundsManagerImpl::Stop(SoundKey key) {
 }
 
 base::TimeDelta SoundsManagerImpl::GetDuration(SoundKey key) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   AudioStreamHandler* handler = GetHandler(key);
   return !handler ? base::TimeDelta() : handler->duration();
 }
@@ -94,7 +96,9 @@ AudioStreamHandler* SoundsManagerImpl::GetHandler(SoundKey key) {
 
 SoundsManager::SoundsManager() {}
 
-SoundsManager::~SoundsManager() { DCHECK(CalledOnValidThread()); }
+SoundsManager::~SoundsManager() {
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
+}
 
 // static
 void SoundsManager::Create() {