There is some confusion over exactly what role libVPX plays in our code base with the stuff now compiled into
mozavcodec. So we need to evaluate if libVPX is required for anything anymore.
At last word it may be that WebRTC needs it but that is not a concern for any current application except
It is possible that WebP support may need it.. It may also be true that only Windows needs it and Linux doesn’t. We just don’t know for sure.
At the very least full MOZ_VPX conditionals need to be reestablished around code that requires it.