Currently, clipping errors are never thrown if we already have a
MediaPeriod. This may happen for example for ProgressiveMediaSource
where we need to create a MediaPeriod before knowing whether clipping
is supported. Playback will still fail, but with unrelated assertion
errors that are hard to understand for users.
Fix this by setting the pending error on the ClippingMediaPeriod.
#minor-release
Issue: Issue: google/ExoPlayer#9580
PiperOrigin-RevId: 406809737
7b84d6b051