Merge "MediaSession2: Remove MediaSession2#registerPlayerEventCallback()" into pi-dev

        mProvider.notifyError_impl(errorCode, extras);

    }

    /**

     * Register {@link PlayerEventCallback} to listen changes in the underlying

     * {@link MediaPlayerBase}, regardless of the change in the underlying player.

     * <p>

     * Registered callbacks will be also called when the underlying player is changed.

     *

     * @param executor a callback Executor

     * @param callback a EventCallback

     * @throws IllegalArgumentException if executor or callback is {@code null}.

     * @hide

     */

    // TODO(jaewan): Remove (b/74157064)

    public void registerPlayerEventCallback(@NonNull @CallbackExecutor Executor executor,

            @NonNull PlayerEventCallback callback) {

        mProvider.registerPlayerEventCallback_impl(executor, callback);

    }

    /**

     * Unregister the previously registered {@link PlayerEventCallback}.

     *

     * @param callback the callback to be removed

     * @throws IllegalArgumentException if the callback is {@code null}.

     * @hide

     */

    // TODO(jaewan): Remove (b/74157064)

    public void unregisterPlayerEventCallback(@NonNull PlayerEventCallback callback) {

        mProvider.unregisterPlayerEventCallback_impl(callback);

    }

    /**

     * Get the player state.

     *

    void setPlaylistParams_impl(PlaylistParams params);

    PlaylistParams getPlaylistParams_impl();

    void notifyError_impl(int errorCode, Bundle extras);

    void registerPlayerEventCallback_impl(Executor executor, PlayerEventCallback callback);

    void unregisterPlayerEventCallback_impl(PlayerEventCallback callback);

    interface CommandProvider {

        int getCommandCode_impl();