am 727cac07: Merge "Add getLegacyVpnInfoPrivileged method"

    public synchronized LegacyVpnInfo getLegacyVpnInfo() {

        // Check if the caller is authorized.

        enforceControlPermission();

        return getLegacyVpnInfoPrivileged();

    }

    /**

     * Return the information of the current ongoing legacy VPN.

     * Callers are responsible for checking permissions if needed.

     */

    public synchronized LegacyVpnInfo getLegacyVpnInfoPrivileged() {

        if (mLegacyVpnRunner == null) return null;

        final LegacyVpnInfo info = new LegacyVpnInfo();