When background page web process suspension is enabled on macOS, background page web processes are getting killed aggressively by the low memory handler.
rdar://103470090
Pull request: https://github.com/WebKit/WebKit/pull/10108
Committed 260292@main (5d5cb596befe): <https://commits.webkit.org/260292@main> Reviewed commits have been landed. Closing PR #10108 and removing active labels.