MediaStreamAudioSourceNode should have a constructor: - https://webaudio.github.io/web-audio-api/#mediastreamaudiosourcenode
Created attachment 406096 [details] Patch
Committed r265342: <https://trac.webkit.org/changeset/265342> All reviewed patches have been landed. Closing bug and clearing flags on attachment 406096 [details].
<rdar://problem/66641206>