Bug 1402377 - Stop the corresponding track instead of the whole stream when an external device is plugged out. r=jib,pehrsons

MozReview-Commit-ID: 7gbB5sgn6xI

--HG--
extra : rebase_source : 9dc0b1cc8d1dd55c4fb71f444c165498f0e7f7ad

dom/media/MediaManager.cpp

@@ -4067,14 +4067,14 @@ GetUserMediaWindowListener::StopRawID(const nsString& removedDeviceID)
       nsString id;
       source->GetAudioDevice()->GetRawId(id);
       if (removedDeviceID.Equals(id)) {
-        source->Stop();
+        source->StopTrack(kAudioTrack);
       }
     }
     if (source->GetVideoDevice()) {
       nsString id;
       source->GetVideoDevice()->GetRawId(id);
       if (removedDeviceID.Equals(id)) {
-        source->Stop();
+        source->StopTrack(kVideoTrack);
       }
     }
   }