--- a/dom/media/AudioStream.cpp
+++ b/dom/media/AudioStream.cpp
@@ -495,23 +495,16 @@ AudioStream::GetPositionInFramesUnlocked
   uint64_t position = 0;
   if (InvokeCubeb(cubeb_stream_get_position, &position) != CUBEB_OK) {
     return -1;
   }
   return std::min<uint64_t>(position, INT64_MAX);
 }
 
 bool
-AudioStream::IsPaused()
-{
-  MonitorAutoLock mon(mMonitor);
-  return mState == STOPPED;
-}
-
-bool
 AudioStream::IsValidAudioFormat(Chunk* aChunk)
 {
   if (aChunk->Rate() != mInRate) {
     LOGW("mismatched sample %u, mInRate=%u", aChunk->Rate(), mInRate);
     return false;
   }
 
   if (aChunk->Channels() > 8) {

--- a/dom/media/AudioStream.h
+++ b/dom/media/AudioStream.h
@@ -206,19 +206,16 @@ public:
   // Return the position in microseconds of the audio frame being played by
   // the audio hardware, compensated for playback rate change. Thread-safe.
   int64_t GetPosition();
 
   // Return the position, measured in audio frames played since the stream
   // was opened, of the audio hardware.  Thread-safe.
   int64_t GetPositionInFrames();
 
-  // Returns true when the audio stream is paused.
-  bool IsPaused();
-
   static uint32_t GetPreferredRate()
   {
     CubebUtils::InitPreferredSampleRate();
     return CubebUtils::PreferredSampleRate();
   }
   uint32_t GetRate() { return mOutRate; }
   uint32_t GetChannels() { return mChannels; }
   uint32_t GetOutChannels() { return mOutChannels; }

--- a/dom/media/mediasink/DecodedAudioDataSink.cpp
+++ b/dom/media/mediasink/DecodedAudioDataSink.cpp
@@ -178,19 +178,19 @@ DecodedAudioDataSink::SetPreservesPitch(
 
 void
 DecodedAudioDataSink::SetPlaying(bool aPlaying)
 {
   if (!mAudioStream || mPlaying == aPlaying || mPlaybackComplete) {
     return;
   }
   // pause/resume AudioStream as necessary.
-  if (!aPlaying && !mAudioStream->IsPaused()) {
+  if (!aPlaying) {
     mAudioStream->Pause();
-  } else if (aPlaying && mAudioStream->IsPaused()) {
+  } else if (aPlaying) {
     mAudioStream->Resume();
   }
   mPlaying = aPlaying;
 }
 
 nsresult
 DecodedAudioDataSink::InitializeAudioStream(const PlaybackParams& aParams)
 {