/usr/ is in libcheese-gtk-dev 3.18.1-2ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/
/usr/lib/x86_64-linux-gnu/pkgconfig/cheese-gtk.pc
/usr/include/
/usr/include/cheese/
/usr/include/cheese/cheese-widget.h
/usr/include/cheese/cheese-gtk.h
/usr/include/cheese/cheese-avatar-chooser.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libcheese-gtk-dev/
/usr/share/doc/libcheese-gtk-dev/copyright
/usr/lib/x86_64-linux-gnu/libcheese-gtk.so
/usr/share/doc/libcheese-gtk-dev/NEWS.gz
/usr/share/doc/libcheese-gtk-dev/AUTHORS
/usr/share/doc/libcheese-gtk-dev/changelog.Debian.gz
/usr/share/doc/libcheese-gtk-dev/README