Shortens the time to freezing background pages (and associated workers) from 5 minutes to 1 minute on Android. See the original intent to ship for background: https://groups.google.com/a/chromium.org/g/blink-dev/c/NKtuFxLsKgo/m/XmQganj9EAAJ. Android 15 has introduced a 1 minute background network restriction on apps, and faster background freezing aligns with this OS-level restriction which causes any network requests made by the site to fail after the 1 minute mark anyways.
See the original intent to ship for background: https://groups.google.com/a/chromium.org/g/blink-dev/c/NKtuFxLsKgo/m/XmQganj9EAAJ Even with a 5 minute timer, we continue to get many reports of high background resource usage, with some sites working around background throttling in workers by avoiding returning control to the event loop. Android 15 has introduced a 1 minute background network restriction on apps, so it makes sense to align our background freezing with this OS-level restriction. There is minor backwards compatibility risk, as sites may be relying on running for the full 5 minutes in the background, but this is already not guaranteed on Android as the OS may choose to kill background apps or processes at any time - and after Android 15 any network requests made by the site would fail after the 1 minute mark anyways.