Part of removing webkitpy's autoinstaller in favor of webkitcorepy's.
<rdar://problem/69798724>
Created attachment 410136 [details] Patch
Comment on attachment 410136 [details] Patch rs=me
Created attachment 410140 [details] Patch
Committed r267805: <https://trac.webkit.org/changeset/267805> All reviewed patches have been landed. Closing bug and clearing flags on attachment 410140 [details].