[Apple Pay] Add new values for -apple-pay-button-type
Created attachment 400893 [details] Patch
<rdar://problem/63908535>
Created attachment 400918 [details] Patch
Created attachment 400935 [details] Patch
Created attachment 400956 [details] Patch
Committed r262528: <https://trac.webkit.org/changeset/262528> All reviewed patches have been landed. Closing bug and clearing flags on attachment 400956 [details].