SDK / exoplayer

The classes these tests are written for have changed
so much we'll have to write them again. We can refer
to V1 if we want to look at what the old tests did, so
there's no need to keep this file in the V2 tree at
the moment.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=128189076