/usr/ is in libcairomm-1.0-dev 1.10.0-1ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/cairomm-1.0/
/usr/include/cairomm-1.0/cairomm/
/usr/include/cairomm-1.0/cairomm/win32_font.h
/usr/include/cairomm-1.0/cairomm/quartz_font.h
/usr/include/cairomm-1.0/cairomm/context.h
/usr/include/cairomm-1.0/cairomm/refptr.h
/usr/include/cairomm-1.0/cairomm/cairomm.h
/usr/include/cairomm-1.0/cairomm/pattern.h
/usr/include/cairomm-1.0/cairomm/exception.h
/usr/include/cairomm-1.0/cairomm/fontface.h
/usr/include/cairomm-1.0/cairomm/win32_surface.h
/usr/include/cairomm-1.0/cairomm/xlib_surface.h
/usr/include/cairomm-1.0/cairomm/surface.h
/usr/include/cairomm-1.0/cairomm/device.h
/usr/include/cairomm-1.0/cairomm/enums.h
/usr/include/cairomm-1.0/cairomm/types.h
/usr/include/cairomm-1.0/cairomm/matrix.h
/usr/include/cairomm-1.0/cairomm/scaledfont.h
/usr/include/cairomm-1.0/cairomm/quartz_surface.h
/usr/include/cairomm-1.0/cairomm/fontoptions.h
/usr/include/cairomm-1.0/cairomm/region.h
/usr/include/cairomm-1.0/cairomm/path.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libcairomm-1.0.a
/usr/lib/x86_64-linux-gnu/libcairomm-1.0.la
/usr/lib/x86_64-linux-gnu/cairomm-1.0/
/usr/lib/x86_64-linux-gnu/cairomm-1.0/include/
/usr/lib/x86_64-linux-gnu/cairomm-1.0/include/cairommconfig.h
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/cairomm-xlib-xrender-1.0.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/cairomm-png-1.0.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/cairomm-xlib-1.0.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/cairomm-ps-1.0.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/cairomm-svg-1.0.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/cairomm-ft-1.0.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/cairomm-1.0.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/cairomm-pdf-1.0.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libcairomm-1.0-dev/
/usr/share/doc/libcairomm-1.0-dev/copyright
/usr/share/doc/libcairomm-1.0-dev/examples/
/usr/share/doc/libcairomm-1.0-dev/examples/text/
/usr/share/doc/libcairomm-1.0-dev/examples/text/toy-text.cc
/usr/share/doc/libcairomm-1.0-dev/examples/text/text-rotate.cc
/usr/share/doc/libcairomm-1.0-dev/examples/text/user-font.cc.gz
/usr/share/doc/libcairomm-1.0-dev/examples/README
/usr/share/doc/libcairomm-1.0-dev/examples/surfaces/
/usr/share/doc/libcairomm-1.0-dev/examples/surfaces/pdf-surface.cc
/usr/share/doc/libcairomm-1.0-dev/examples/surfaces/image-surface.cc
/usr/share/doc/libcairomm-1.0-dev/examples/surfaces/ps-surface.cc
/usr/share/doc/libcairomm-1.0-dev/examples/surfaces/svg-surface.cc
/usr/lib/x86_64-linux-gnu/libcairomm-1.0.so
/usr/share/doc/libcairomm-1.0-dev/changelog.Debian.gz
/usr/share/doc/libcairomm-1.0-dev/AUTHORS
/usr/share/doc/libcairomm-1.0-dev/NEWS.gz
/usr/share/doc/libcairomm-1.0-dev/README