--- a/dom/media/mediasource/MediaSourceDecoder.cpp
+++ b/dom/media/mediasource/MediaSourceDecoder.cpp
@@ -291,17 +291,17 @@ MediaSourceDecoder::NextFrameBufferedSta
   // Next frame hasn't been decoded yet.
   // Use the buffered range to consider if we have the next frame available.
   auto currentPosition = CurrentPosition();
   TimeIntervals buffered = GetBuffered();
   buffered.SetFuzz(MediaSourceDemuxer::EOS_FUZZ / 2);
   TimeInterval interval(
     currentPosition,
     currentPosition + DEFAULT_NEXT_FRAME_AVAILABLE_BUFFERED);
-  return buffered.ContainsStrict(ClampIntervalToEnd(interval))
+  return buffered.ContainsWithStrictEnd(ClampIntervalToEnd(interval))
          ? MediaDecoderOwner::NEXT_FRAME_AVAILABLE
          : MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE;
 }
 
 bool
 MediaSourceDecoder::CanPlayThroughImpl()
 {
   MOZ_ASSERT(NS_IsMainThread());
@@ -326,17 +326,17 @@ MediaSourceDecoder::CanPlayThroughImpl()
   }
   // If we have data up to the mediasource's duration or 10s ahead, we can
   // assume that we can play without interruption.
   TimeIntervals buffered = GetBuffered();
   buffered.SetFuzz(MediaSourceDemuxer::EOS_FUZZ / 2);
   TimeUnit timeAhead =
     std::min(duration, currentPosition + TimeUnit::FromSeconds(10));
   TimeInterval interval(currentPosition, timeAhead);
-  return buffered.ContainsStrict(ClampIntervalToEnd(interval));
+  return buffered.ContainsWithStrictEnd(ClampIntervalToEnd(interval));
 }
 
 TimeInterval
 MediaSourceDecoder::ClampIntervalToEnd(const TimeInterval& aInterval)
 {
   MOZ_ASSERT(NS_IsMainThread());
   AbstractThread::AutoEnter context(AbstractMainThread());