--- a/dom/media/NextFrameSeekTask.cpp
+++ b/dom/media/NextFrameSeekTask.cpp
@@ -46,21 +46,20 @@ NextFrameSeekTask::NextFrameSeekTask(con
                                    int64_t aCurrentMediaTime,
                                    MediaQueue<MediaData>& aAudioQueue,
                                    MediaQueue<MediaData>& aVideoQueue)
   : SeekTask(aDecoderID, aThread, aReader, Move(aSeekJob))
   , mAudioQueue(aAudioQueue)
   , mVideoQueue(aVideoQueue)
   , mCurrentTimeBeforeSeek(aCurrentMediaTime)
   , mHasAudio(aInfo.HasAudio())
-  , mHasVideo(aInfo.HasVideo())
   , mDuration(aDuration)
 {
   AssertOwnerThread();
-  MOZ_ASSERT(HasVideo());
+  MOZ_ASSERT(aInfo.HasVideo());
 
   // Configure MediaDecoderReaderWrapper.
   SetCallbacks();
 }
 
 NextFrameSeekTask::~NextFrameSeekTask()
 {
   AssertOwnerThread();
@@ -69,23 +68,16 @@ NextFrameSeekTask::~NextFrameSeekTask()
 
 bool
 NextFrameSeekTask::HasAudio() const
 {
   AssertOwnerThread();
   return mHasAudio;
 }
 
-bool
-NextFrameSeekTask::HasVideo() const
-{
-  AssertOwnerThread();
-  return mHasVideo;
-}
-
 void
 NextFrameSeekTask::Discard()
 {
   AssertOwnerThread();
 
   // Disconnect MediaDecoder.
   mSeekJob.RejectIfExists(__func__);
 

--- a/dom/media/NextFrameSeekTask.h
+++ b/dom/media/NextFrameSeekTask.h
@@ -40,18 +40,16 @@ public:
 
   bool NeedToResetMDSM() const override;
 
 private:
   ~NextFrameSeekTask();
 
   bool HasAudio() const;
 
-  bool HasVideo() const;
-
   bool IsVideoDecoding() const;
 
   nsresult EnsureVideoDecodeTaskQueued();
 
   const char* VideoRequestStatus();
 
   void RequestVideoData();
 
@@ -83,17 +81,16 @@ private:
   MediaQueue<MediaData>& mAudioQueue;
   MediaQueue<MediaData>& mVideoQueue;
 
   /*
    * Internal state.
    */
   const int64_t mCurrentTimeBeforeSeek;
   const bool mHasAudio;
-  const bool mHasVideo;
   media::TimeUnit mDuration;
 
   MediaEventListener mAudioCallback;
   MediaEventListener mVideoCallback;
   MediaEventListener mAudioWaitCallback;
   MediaEventListener mVideoWaitCallback;
 };