Merge "Add an intdef for entry points of a media routing session." into main

    @Retention(RetentionPolicy.SOURCE)

    public @interface ScanningState {}

    /**

     * Indicates that a routing session started as the result of selecting a route from the output

     * switcher where the route is not amongst the suggested routes.

     *

     * @hide

     */

    public static final int ENTRY_POINT_SYSTEM_OUTPUT_SWITCHER_NOT_SUGGESTED = 0;

    /**

     * Indicates that a routing session started as the result of selecting a route from the output

     * switcher where the route is amongst the suggested routes.

     *

     * @hide

     */

    public static final int ENTRY_POINT_SYSTEM_OUTPUT_SWITCHER_SUGGESTED_DEVICE = 1;

    /**

     * Indicates that a routing session started as the result of selecting the device suggestion

     * pill in the UMO notification.

     *

     * @hide

     */

    public static final int ENTRY_POINT_SYSTEM_UMO_SUGGESTED_DEVICE = 2;

    /**

     * Indicates that a routing session was started from a local media router instance where the

     * entry point was not specified.

     *

     * <p>This entry point is marked when {@link MediaRouter2#transferTo(MediaRoute2Info)} is called

     * on a local media router instance.

     *

     * @hide

     */

    public static final int ENTRY_POINT_LOCAL_ROUTER_UNSPECIFIED = 3;

    /**

     * Indicates that a routing session was started from a proxy media router instance where the

     * entry point was not specified.

     *

     * <p>This entry point is marked when {@link MediaRouter2#transferTo(MediaRoute2Info)} is called

     * on a proxy media router instance.

     *

     * @hide

     */

    public static final int ENTRY_POINT_PROXY_ROUTER_UNSPECIFIED = 4;

    /** @hide */

    @IntDef(

            prefix = "ENTRY_POINT",

            value = {

                ENTRY_POINT_SYSTEM_OUTPUT_SWITCHER_NOT_SUGGESTED,

                ENTRY_POINT_SYSTEM_OUTPUT_SWITCHER_SUGGESTED_DEVICE,

                ENTRY_POINT_SYSTEM_UMO_SUGGESTED_DEVICE,

                ENTRY_POINT_LOCAL_ROUTER_UNSPECIFIED,

                ENTRY_POINT_PROXY_ROUTER_UNSPECIFIED

            })

    @Retention(RetentionPolicy.SOURCE)

    public @interface EntryPoint {}

    private static final String TAG = "MR2";

    private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);

    private static final Object sSystemRouterLock = new Object();