Clean up BaseAudioContext now that legacy/prefixed WebAudio is gone. Now that we have a simpler class hierarchy, we can move more code out of BaseAudioContext and into its subclasses (OfflineAudioContext & AudioContext).
Created attachment 428744 [details] Patch
*** Bug 180332 has been marked as a duplicate of this bug. ***
Committed r277553 (237781@main): <https://commits.webkit.org/237781@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 428744 [details].
<rdar://problem/78066681>