Allow enabling PSON in layout tests without window.open support since window.open support is far from being ready and we plan to enable PSON in layout tests soon.
Created attachment 342456 [details] Patch
Comment on attachment 342456 [details] Patch r=me
Comment on attachment 342456 [details] Patch Clearing flags on attachment: 342456 Committed r232729: <https://trac.webkit.org/changeset/232729>
All reviewed patches have been landed. Closing bug.
<rdar://problem/41017361>