/usr/ is in libatrilview-dev 1.16.1-2+deb9u1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/atril/
/usr/include/atril/1.5.0/
/usr/include/
/usr/include/atril/1.5.0/atril-view.h
/usr/include/atril/1.5.0/libview/
/usr/include/atril/1.5.0/libview/ev-document-model.h
/usr/include/atril/1.5.0/libview/ev-job-scheduler.h
/usr/include/atril/1.5.0/libview/ev-jobs.h
/usr/include/atril/1.5.0/libview/ev-print-operation.h
/usr/include/atril/1.5.0/libview/ev-stock-icons.h
/usr/include/atril/1.5.0/libview/ev-view-presentation.h
/usr/include/atril/1.5.0/libview/ev-view-type-builtins.h
/usr/include/atril/1.5.0/libview/ev-view.h
/usr/include/atril/1.5.0/libview/ev-web-view.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/atril-view-1.5.0.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libatrilview-dev/
/usr/share/doc/libatrilview-dev/changelog.Debian.gz
/usr/share/doc/libatrilview-dev/changelog.gz
/usr/share/doc/libatrilview-dev/copyright
/usr/lib/x86_64-linux-gnu/libatrilview.so