Secure fields always return an empty selected text range. We can avoid a main-thread hit with this information.
<rdar://problem/108977135>
Created attachment 466237 [details] Patch
Committed 263762@main (23f4fb0fbfde): <https://commits.webkit.org/263762@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 466237 [details].