ExoPlayer disables sleeping for offload when the reading period advances and re-evaluates turning it back on when the playing period advances. For playlists of short items where the reading period could advance much further than the playing period, sleeping should still be disabled until the playing period advances to match the current reading period.
Issue: androidx/media#1920
PiperOrigin-RevId: 743503063
(cherry picked from commit 8327a2a52dd72a98d4abc123f33cfe1250898318)
9cfaf78994