The initialization added in r257758 introduced a launch performance regression.
Created attachment 395755 [details]
Created attachment 395839 [details]
Comment on attachment 395839 [details]
r=me, make sure to not land this before the internal part.
Committed r259771: <https://trac.webkit.org/changeset/259771>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 395839 [details].