Bug 1855369 - log underlying track when it exists;r=pehrsons

Differential Revision: https://phabricator.services.mozilla.com/D189548

dom/media/DOMMediaStream.cpp

@@ -334,8 +334,16 @@ void DOMMediaStream::AddTrack(MediaStreamTrack& aTrack) {
 }
 
 void DOMMediaStream::RemoveTrack(MediaStreamTrack& aTrack) {
-  LOG(LogLevel::Info, ("DOMMediaStream %p Removing track %p (from track %p)",
-                       this, &aTrack, aTrack.GetTrack()));
+  if (static_cast<LogModule*>(gMediaStreamLog)->ShouldLog(LogLevel::Info)) {
+    if (aTrack.Ended()) {
+      LOG(LogLevel::Info,
+          ("DOMMediaStream %p Removing (ended) track %p", this, &aTrack));
+    } else {
+      LOG(LogLevel::Info,
+          ("DOMMediaStream %p Removing track %p (from track %p)", this, &aTrack,
+           aTrack.GetTrack()));
+    }
+  }
 
   if (!mTracks.RemoveElement(&aTrack)) {
     LOG(LogLevel::Debug,