/usr/include/KF5/MessageViewer/GrantleeHeaderTestStyle is in libkf5messageviewer-dev 4:16.04.3-3~deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | #include "messageviewer/grantleeheaderteststyle.h"
|