Enable File and Directory Entries API at runtime. It is currently disabled and relies on DataTransfer.items which is also disabled at runtime.
<rdar://problem/34330942>
The minimum requirement to enable dataTransfer.items is to add the support for URL & HTML. I'm trying to finish that work next week.
dataTransfer.items is enabled by default on macOS & iOS as of https://trac.webkit.org/r222376
Created attachment 321596 [details] Patch
Comment on attachment 321596 [details] Patch r=me
Comment on attachment 321596 [details] Patch Clearing flags on attachment: 321596 Committed r222412: <http://trac.webkit.org/changeset/222412>
All reviewed patches have been landed. Closing bug.