--- a/dom/media/MediaDecoderReader.h
+++ b/dom/media/MediaDecoderReader.h
@@ -361,17 +361,16 @@ protected:
 
   // Duration, mirrored from the state machine task queue.
   Mirror<media::NullableTimeUnit> mDuration;
 
   // State for ThrottledNotifyDataArrived.
   MozPromiseRequestHolder<MediaTimerPromise> mThrottledNotify;
   const TimeDuration mThrottleDuration;
   TimeStamp mLastThrottledNotify;
-  Maybe<media::Interval<int64_t>> mThrottledInterval;
 
   // Whether we should accept media that we know we can't play
   // directly, because they have a number of channel higher than
   // what we support.
   bool mIgnoreAudioOutputFormat;
 
   // The start time of the media, in microseconds. This is the presentation
   // time of the first frame decoded from the media. This is initialized to -1,

--- a/dom/media/mediasource/SourceBuffer.cpp
+++ b/dom/media/mediasource/SourceBuffer.cpp
@@ -305,17 +305,16 @@ SourceBuffer::Ended()
 }
 
 SourceBuffer::SourceBuffer(MediaSource* aMediaSource, const nsACString& aType)
   : DOMEventTargetHelper(aMediaSource->GetParentObject())
   , mMediaSource(aMediaSource)
   , mUpdating(false)
   , mActive(false)
   , mUpdateID(0)
-  , mReportedOffset(0)
   , mType(aType)
 {
   MOZ_ASSERT(NS_IsMainThread());
   MOZ_ASSERT(aMediaSource);
   mEvictionThreshold = Preferences::GetUint("media.mediasource.eviction_threshold",
                                             100 * (1 << 20));
   bool generateTimestamps = false;
   if (aType.LowerCaseEqualsLiteral("audio/mpeg") ||

--- a/dom/media/mediasource/SourceBuffer.h
+++ b/dom/media/mediasource/SourceBuffer.h
@@ -265,17 +265,16 @@ private:
   bool mUpdating;
 
   mozilla::Atomic<bool> mActive;
 
   // Each time mUpdating is set to true, mUpdateID will be incremented.
   // This allows for a queued AppendData task to identify if it was earlier
   // aborted and another AppendData queued.
   uint32_t mUpdateID;
-  int64_t mReportedOffset;
 
   MozPromiseRequestHolder<SourceBufferContentManager::AppendPromise> mPendingAppend;
   const nsCString mType;
 
   RefPtr<TimeRanges> mBuffered;
 };
 
 } // namespace dom