/usr/include/qt5/QtNetwork/ is in qtbase5-private-dev 5.2.1+dfsg-1ubuntu14.
This file is owned by root:root, with mode 0o755.
..
/usr/include/qt5/QtNetwork/5.2.1/
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qabstractnetworkcache_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qabstractsocket_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qabstractsocketengine_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qauthenticator_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qbearerengine_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qbearerplugin_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qdnslookup_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qftp_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhostaddress_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhostinfo_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhttpmultipart_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhttpnetworkconnection_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhttpnetworkconnectionchannel_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhttpnetworkheader_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhttpnetworkreply_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhttpnetworkrequest_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhttpsocketengine_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qhttpthreaddelegate_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qlocalserver_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qlocalsocket_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnativesocketengine_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnet_unix_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkaccessauthenticationmanager_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkaccessbackend_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkaccesscache_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkaccesscachebackend_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkaccessdebugpipebackend_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkaccessfilebackend_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkaccessftpbackend_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkaccessmanager_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkconfigmanager_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkconfiguration_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkcookie_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkcookiejar_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkdiskcache_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkinterface_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkinterface_win_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkproxy_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkreply_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkreplydataimpl_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkreplyfileimpl_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkreplyhttpimpl_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkreplyimpl_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkreplynsurlconnectionimpl_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworkrequest_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qnetworksession_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsharednetworksession_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsocks5socketengine_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslcertificate_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslcertificateextension_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslcipher_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslconfiguration_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslcontext_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslkey_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslsocket_openssl_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslsocket_openssl_symbols_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qsslsocket_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qtcpsocket_p.h
/usr/include/qt5/QtNetwork/5.2.1/QtNetwork/private/qurlinfo_p.h