--- a/dom/media/AudioStream.cpp
+++ b/dom/media/AudioStream.cpp
@@ -334,20 +334,18 @@ AudioStream::Init(uint32_t aNumChannels,
 
   mDumpFile = OpenDumpFile(this);
 
   cubeb_stream_params params;
   params.rate = aRate;
   params.channels = mOutChannels;
 #if defined(__ANDROID__)
 #if defined(MOZ_B2G)
-  mAudioChannel = aAudioChannel;
   params.stream_type = CubebUtils::ConvertChannelToCubebType(aAudioChannel);
 #else
-  mAudioChannel = dom::AudioChannel::Content;
   params.stream_type = CUBEB_STREAM_TYPE_MUSIC;
 #endif
 
   if (params.stream_type == CUBEB_STREAM_TYPE_MAX) {
     return NS_ERROR_INVALID_ARG;
   }
 #endif
 

--- a/dom/media/AudioStream.h
+++ b/dom/media/AudioStream.h
@@ -338,19 +338,16 @@ private:
   Monitor mMonitor;
 
   // Input rate in Hz (characteristic of the media being played)
   uint32_t mInRate;
   // Output rate in Hz (characteristic of the playback rate)
   uint32_t mOutRate;
   uint32_t mChannels;
   uint32_t mOutChannels;
-#if defined(__ANDROID__)
-  dom::AudioChannel mAudioChannel;
-#endif
   AudioClock mAudioClock;
   soundtouch::SoundTouch* mTimeStretcher;
 
   // Stream start time for stream open delay telemetry.
   TimeStamp mStartTime;
 
   // Output file for dumping audio
   FILE* mDumpFile;