Issue surfaced in r272484 on PlayStation where the build started failing.
Created attachment 419877 [details] Patch
Created attachment 419913 [details] Patch
Created attachment 419915 [details] WIP Patch
Created attachment 419989 [details] Patch
Committed r272732: <https://commits.webkit.org/r272732> All reviewed patches have been landed. Closing bug and clearing flags on attachment 419989 [details].