/usr/include/ is in libkf5dnssd-dev 5.44.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KF5/
/usr/include/KF5/KDNSSD/
/usr/include/KF5/KDNSSD/DNSSD/
/usr/include/KF5/KDNSSD/DNSSD/DomainBrowser
/usr/include/KF5/KDNSSD/DNSSD/DomainModel
/usr/include/KF5/KDNSSD/DNSSD/PublicService
/usr/include/KF5/KDNSSD/DNSSD/RemoteService
/usr/include/KF5/KDNSSD/DNSSD/ServiceBase
/usr/include/KF5/KDNSSD/DNSSD/ServiceBrowser
/usr/include/KF5/KDNSSD/DNSSD/ServiceModel
/usr/include/KF5/KDNSSD/DNSSD/ServiceTypeBrowser
/usr/include/KF5/KDNSSD/dnssd/
/usr/include/KF5/KDNSSD/dnssd/domainbrowser.h
/usr/include/KF5/KDNSSD/dnssd/domainmodel.h
/usr/include/KF5/KDNSSD/dnssd/kdnssd_export.h
/usr/include/KF5/KDNSSD/dnssd/publicservice.h
/usr/include/KF5/KDNSSD/dnssd/remoteservice.h
/usr/include/KF5/KDNSSD/dnssd/servicebase.h
/usr/include/KF5/KDNSSD/dnssd/servicebrowser.h
/usr/include/KF5/KDNSSD/dnssd/servicemodel.h
/usr/include/KF5/KDNSSD/dnssd/servicetypebrowser.h