SDK / exoplayer

These were missed in https://github.com/google/ExoPlayer/commit/46ab94bd4152b0addc2253585435186fc9e75582

These references will be re-written to PlayerView when exporting to
exoplayer2, so this commit results in some small reformatting changes.

Also fix a reference to LegacyPlayerControlView that should be
StyledPlayerControlView.

PiperOrigin-RevId: 420707706