olly e765f7a8eb Further media3 session cleanup ... * Remove casting getInstance and getCallback methods and just use member variables that have the more specific types. I didn't manage to get rid of casting completely; there are still one-off casts during construction. We should look at removing those in the future, but it's not completely trivial due to the way the Impl classes back-reference their wrapping classes. * Move all callback invocations inside the Impl classes for consistency, and properly encapsulate the callbacks there. Sticking with the "OnHandler" naming convention for these methods, but we should probably tweak that in a subsequent change. * Encapsulate MediaItemFiller in MediaSessionImpl. * Some misc cleanup (e.g., converting anonymous inner classes to lambdas where possible). PiperOrigin-RevId: 414401978		2021-12-07 17:37:31 +00:00
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main	Further media3 session cleanup	2021-12-07 17:37:31 +00:00
test	Migrate usages of Window-based Player methods	2021-11-09 10:07:30 +00:00