Pass a temporary no-op HomeSurfaceTracker when mHomeSurfaceTracker is null during warm startup to prevent the NPE in upstream's setInitialOverviewStateOnResumeWithNtp. This can happen on activity recreate (rotation, process death, foldable transitions) where onResumeWithNative fires before the tracker is initialized. Resolves: https://github.com/brave/brave-browser/issues/53071