Listeners everywhere
Created attachment 398747 [details] patch
Created attachment 398748 [details] patch
Created attachment 398753 [details] patch
Committed r261314: <https://trac.webkit.org/changeset/261314> All reviewed patches have been landed. Closing bug and clearing flags on attachment 398753 [details].
<rdar://problem/62983727>
Land the tests
Created attachment 399246 [details] test
Committed r261606: <https://trac.webkit.org/changeset/261606> All reviewed patches have been landed. Closing bug and clearing flags on attachment 399246 [details].