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6bda0da6be
When sending a custom command with `browser.sendCustomCommand` when connected to a legacy browser service, the custom command was delivered to `MediaSessionCompat.Callback.onCustomAction` instead of the service method `onCustomAction`. The difference is that the service version can return an async response with a bundle, while the session callback version doesn't have a return value. Hence, the service method was never called and it wasn't possible to send a reponse or signal an error back to the browser. The resulting `ListanableFuture` simply always immediately resolved to a success. This change overrides `ListenableFuture<SessionResult> sendCustomCommand(SessionCommand command, Bundle args)` in `MediaBrowserImplLegacy` to use the `MediaBrowserCompat` method to send instead of the `MediaControlleCompat` method that was used by the subclass `MediaControllerImplLegacy`. This involves the service callback instead of the session callback and enables `MediaBrowser` to get the actual return value from the legacy service. Issue: androidx/media#1474 #cherrypick PiperOrigin-RevId: 676519314