--- a/dom/media/MediaDecoder.cpp
+++ b/dom/media/MediaDecoder.cpp
@@ -199,17 +199,17 @@ MediaDecoder::ResourceCallback::TimerCal
 void
 MediaDecoder::ResourceCallback::NotifyDataArrived()
 {
   MOZ_ASSERT(NS_IsMainThread());
   if (!mDecoder) {
     return;
   }
 
-  mDecoder->NotifyBytesDownloaded();
+  mDecoder->NotifyDownloadProgressed();
 
   if (mTimerArmed) {
     return;
   }
   // In situations where these notifications come from stochastic network
   // activity, we can save significant computation by throttling the
   // calls to MediaDecoder::NotifyDataArrived() which will update the buffer
   // ranges of the reader.
@@ -1040,17 +1040,17 @@ MediaDecoder::ShouldThrottleDownload()
     return false;
   }
   uint32_t factor =
     std::max(2u, Preferences::GetUint("media.throttle-factor", 2));
   return stats.mDownloadRate > factor * stats.mPlaybackRate;
 }
 
 void
-MediaDecoder::NotifyBytesDownloaded()
+MediaDecoder::NotifyDownloadProgressed()
 {
   MOZ_ASSERT(NS_IsMainThread());
   MOZ_DIAGNOSTIC_ASSERT(!IsShutdown());
   UpdatePlaybackRate();
   GetOwner()->DownloadProgressed();
   mResource->ThrottleReadahead(ShouldThrottleDownload());
 }
 

--- a/dom/media/MediaDecoder.h
+++ b/dom/media/MediaDecoder.h
@@ -250,17 +250,17 @@ public:
   // Return the duration of the video in seconds.
   virtual double GetDuration();
 
   // Return true if the stream is infinite (see SetInfinite).
   bool IsInfinite() const;
 
   // Called by MediaResource when some data has been received.
   // Call on the main thread only.
-  virtual void NotifyBytesDownloaded();
+  virtual void NotifyDownloadProgressed();
 
   // Called as data arrives on the stream and is read into the cache.  Called
   // on the main thread only.
   void NotifyDataArrived();
 
   // Return true if we are currently seeking in the media resource.
   // Call on the main thread only.
   bool IsSeeking() const;

--- a/dom/media/mediasource/SourceBuffer.cpp
+++ b/dom/media/mediasource/SourceBuffer.cpp
@@ -445,17 +445,17 @@ SourceBuffer::AppendDataCompletedWithSuc
                })
         ->Track(mCompletionPromise);
     }
   }
   if (mActive) {
     // Tell our parent decoder that we have received new data.
     mMediaSource->GetDecoder()->NotifyDataArrived();
     // Send progress event.
-    mMediaSource->GetDecoder()->NotifyBytesDownloaded();
+    mMediaSource->GetDecoder()->NotifyDownloadProgressed();
   }
 
   mCurrentAttributes = aResult.second();
 
   CheckEndTime();
 
   if (!mCompletionPromise.Exists()) {
     StopUpdating();