SDK / exoplayer

The type is already UUID so there's no need to duplicate that info in
the field name, and 'scheme' is a widely used term throughout both
ExoPlayer and android.os.MediaDrm documentation.

The old field remains deprecated for backwards compatibility.

The MediaItem.DrmConfiguration.Builder#setUuid method is renamed
directly (without deprecation) because it's not yet part of a released
ExoPlayer version.

PiperOrigin-RevId: 397961553