Merge "Allow network stack UID caller to retrieve cell identity" into rvc-dev

    /** Check if location permissions have been granted */

    public static LocationPermissionResult checkLocationPermission(

            Context context, LocationPermissionQuery query) {

        // Always allow the phone process and system server to access location. This avoid

        // breaking legacy code that rely on public-facing APIs to access cell location, and

        // it doesn't create an info leak risk because the cell location is stored in the phone

        // Always allow the phone process, system server, and network stack to access location.

        // This avoid breaking legacy code that rely on public-facing APIs to access cell location,

        // and it doesn't create an info leak risk because the cell location is stored in the phone

        // process anyway, and the system server already has location access.

        if (query.callingUid == Process.PHONE_UID || query.callingUid == Process.SYSTEM_UID

                || query.callingUid == Process.NETWORK_STACK_UID

                || query.callingUid == Process.ROOT_UID) {

            return LocationPermissionResult.ALLOWED;

        }