This file is indexed.

/usr/include/phonon4qt5/phonon/Phonon/VolumeFaderEffect is in libphonon4qt5-dev 4:4.9.0-4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
#include "../../phonon/volumefadereffect.h"