/usr/share/cups/ is in cups-ppdc 1.7.5-11+deb8u2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/cups/examples/
/usr/share/cups/examples/color.drv
/usr/share/cups/examples/constraint.drv
/usr/share/cups/examples/custom.drv
/usr/share/cups/examples/grouping.drv
/usr/share/cups/examples/laserjet-basic.drv
/usr/share/cups/examples/laserjet-pjl.drv
/usr/share/cups/examples/minimum.drv
/usr/share/cups/examples/postscript.drv
/usr/share/cups/examples/r300-basic.drv
/usr/share/cups/examples/r300-colorman.drv
/usr/share/cups/examples/r300-remote.drv
/usr/share/cups/ppdc/
/usr/share/cups/ppdc/epson.h
/usr/share/cups/ppdc/hp.h
/usr/share/cups/ppdc/label.h