Merge change 7069 into donut

 * {@link DISCONNECTING} and then {@link IDLE}.

 * {@link CANCELLED} is a state when a VPN connection attempt is aborted, and

 * is in transition to {@link IDLE}.

 * The {@link UNUSABLE} state indicates that the profile is not in a state for

 * connecting due to possibly the integrity of the fields or another profile is

 * connecting etc.

 * The {@link UNKNOWN} state indicates that the profile state is to be

 * determined.

 * {@hide}

 */

public enum VpnState {

    CONNECTING, DISCONNECTING, CANCELLED, CONNECTED, IDLE

    CONNECTING, DISCONNECTING, CANCELLED, CONNECTED, IDLE, UNUSABLE, UNKNOWN

}