0160b87c43
The playback state in ExoPlayerImpl and ExoPlayerImplInternal is usually kept in sync. Only the timeline was so far not updated in the same way with the internal player using a null timeline while ExoPlayerImpl keeps the previous timeline. This change removes the need to keep a null timeline which allows to update the internal timeline in the same way as the external one. This fixes problems when retrying a failed playback multiple times. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=188034988