Merge "Update documentation for phone account sort order"

public final class PhoneAccount implements Parcelable {

    /**

     * String extra which determines the order in which {@link PhoneAccount}s are sorted

     * Integer extra which determines the order in which {@link PhoneAccount}s are sorted

     *

     * This is an extras key set via {@link Builder#setExtras} which determines the order in which

     * {@link PhoneAccount}s from the same {@link ConnectionService} are sorted. The accounts

     * are sorted by this key via standard lexicographical order, (as implemented in

     * {@link String#compareTo}), and this ordering is used to

     * are sorted in ascending order by this key, and this ordering is used to

     * determine priority when a call can be placed via multiple accounts.

     *

     * When multiple {@link PhoneAccount}s are supplied with the same sort order key, no ordering is