/usr/ is in libstartup-notification0-dev 0.12-5.
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/usr/share/doc/libstartup-notification0-dev/
/usr/include/
/usr/include/startup-notification-1.0/
/usr/include/startup-notification-1.0/libsn/
/usr/include/startup-notification-1.0/libsn/sn-common.h
/usr/include/startup-notification-1.0/libsn/sn-launchee.h
/usr/include/startup-notification-1.0/libsn/sn-launcher.h
/usr/include/startup-notification-1.0/libsn/sn-monitor.h
/usr/include/startup-notification-1.0/libsn/sn-util.h
/usr/include/startup-notification-1.0/libsn/sn.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libstartup-notification-1.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libstartup-notification-1.0.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libstartup-notification0-dev/copyright
/usr/lib/x86_64-linux-gnu/libstartup-notification-1.so
/usr/share/doc/libstartup-notification0-dev/changelog.Debian.gz