Screen capture should be an experimental feature on OSX only
<rdar://problem/45994142>
Created attachment 354568 [details] Patch
Comment on attachment 354568 [details] Patch Clearing flags on attachment: 354568 Committed r238101: <https://trac.webkit.org/changeset/238101>
All reviewed patches have been landed. Closing bug.
Follow up fix for GetDisplayMediaTest API tests in https://trac.webkit.org/r238107