WKMouseGestureRecognizer should be implemented without using UIKit internals
Created attachment 399905 [details] Patch
<rdar://problem/61163726>
Created attachment 399911 [details] Patch
Created attachment 399917 [details] Patch
Committed r261978: <https://trac.webkit.org/changeset/261978> All reviewed patches have been landed. Closing bug and clearing flags on attachment 399917 [details].