Let the DrawingArea decide whether scrolling is delegated
Created attachment 385734 [details] Patch
Created attachment 385735 [details] Patch
Comment on attachment 385735 [details] Patch Clearing flags on attachment: 385735 Committed r253559: <https://trac.webkit.org/changeset/253559>
All reviewed patches have been landed. Closing bug.
<rdar://problem/57973264>