Bug 1065855 - Ignore updating check when setting MediaSource Duration within a SourceBuffer append - r=kinetik

--HG--
extra : rebase_source : baa31fd9d380ebf6765adb5ce89848c6dd3f4241

content/media/mediasource/MediaSource.h

@@ -105,6 +105,10 @@ public:
 #endif
 
 private:
+  // MediaSourceDecoder uses DurationChange to set the duration
+  // without hitting the checks in SetDuration.
+  friend class mozilla::MediaSourceDecoder;
+
   ~MediaSource();
 
   explicit MediaSource(nsPIDOMWindow* aWindow);

content/media/mediasource/MediaSourceDecoder.cpp

@@ -76,6 +76,7 @@ MediaSourceDecoder::GetSeekable(dom::TimeRanges* aSeekable)
   if (!mMediaSource) {
     return NS_ERROR_FAILURE;
   }
+
   double duration = mMediaSource->Duration();
   if (IsNaN(duration)) {
     // Return empty range.
@@ -169,7 +170,7 @@ MediaSourceDecoder::SetMediaSourceDuration(double aDuration)
     return;
   }
   ErrorResult dummy;
-  mMediaSource->SetDuration(aDuration, dummy);
+  mMediaSource->DurationChange(aDuration, dummy);
 }
 
 void