/usr/share/doc/libclutter-gst-doc/html is in libclutter-gst-2.0-doc 2.0.18-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libclutter-gst-doc/../../gtk-doc/html/clutter-gst
/usr/share/doc/libclutter-gst-doc/../../gtk-doc/html/clutter-gst