Merge "Update NotificationSection enum."

    optional bool is_group_summary = 5;

    // The section of the shade that the notification is in.

    // See NotificationSectionsManager.PriorityBucket.

    // See SystemUI Notifications.proto.

    enum NotificationSection {

        SECTION_UNKNOWN = 0;

        SECTION_HEADS_UP = 1;

        SECTION_PEOPLE = 3;

        SECTION_ALERTING = 4;

        SECTION_SILENT = 5;

        SECTION_FOREGROUND_SERVICE = 6;

    }

    optional NotificationSection section = 6;

}