WebsiteDataStore functions should only send IPC to WebProcesses that are associated with its session.
setResourceLoadStatisticsEnabled() / clearResourceLoadStatisticsInWebProcesses() were talking to all WebProcesses, even those associated with other sessions, which was wrong.
Created attachment 399398 [details]
Committed r261717: <https://trac.webkit.org/changeset/261717>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 399398 [details].