Moving to WebKitForWindows/WebKitRequirements and the zip is now WebKitRequirementsWin64.zip.
Created attachment 393798 [details] Patch
Committed r258612: <https://trac.webkit.org/changeset/258612> All reviewed patches have been landed. Closing bug and clearing flags on attachment 393798 [details].
<rdar://problem/60562108>