rohks f2eac2df71 Optimise bundling for AdPlaybackState using AdPlaybackState.NONE
Did not do this optimisation for `AdPlaybackState.AdGroup` as its length is zero for `AdPlaybackState` with no ads.

No need to pass default values while fetching keys, which we always set in `AdPlaybackState.AdGroup.toBundle()`.

PiperOrigin-RevId: 496995048
2023-01-04 18:37:01 +00:00
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