/usr/share/gtk-doc/ is in python-gnome2-doc 2.28.1+dfsg-1ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gtk-doc/html/
/usr/share/gtk-doc/html/pygnomevfs/
/usr/share/gtk-doc/html/pygnomevfs/class-gnomevfs-context.html
/usr/share/gtk-doc/html/pygnomevfs/class-gnomevfs-directoryhandle.html
/usr/share/gtk-doc/html/pygnomevfs/class-gnomevfs-drive.html
/usr/share/gtk-doc/html/pygnomevfs/class-gnomevfs-fileinfo.html
/usr/share/gtk-doc/html/pygnomevfs/class-gnomevfs-handle.html
/usr/share/gtk-doc/html/pygnomevfs/class-gnomevfs-uri.html
/usr/share/gtk-doc/html/pygnomevfs/class-gnomevfs-volume.html
/usr/share/gtk-doc/html/pygnomevfs/gnomevfs-class-reference.html
/usr/share/gtk-doc/html/pygnomevfs/gnomevfs-constants.html
/usr/share/gtk-doc/html/pygnomevfs/gnomevfs-functions.html
/usr/share/gtk-doc/html/pygnomevfs/index.html
/usr/share/gtk-doc/html/pygnomevfs/index.sgml
/usr/share/gtk-doc/html/pygnomevfs/pygnomevfs.devhelp