We can get error code by using WKErrorGetErrorCode() from WKErrorRef but some error definitions don't exist in WKErrorRef.h Therefore, UIProcess has to handle such errors only by number and it is inconvenient. In this ticket, we add error definitions which exist in APIErrors.h but doesn't exist in WKErrorRef.h
Created attachment 442094 [details] Patch
Committed r284698 (243415@main): <https://commits.webkit.org/243415@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 442094 [details].
<rdar://problem/84556807>