/usr/include/kdevplatform/sublime/ is in libsublime-dev 1.7.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/kdevplatform/sublime/area.h
/usr/include/kdevplatform/sublime/areaindex.h
/usr/include/kdevplatform/sublime/areawalkers.h
/usr/include/kdevplatform/sublime/container.h
/usr/include/kdevplatform/sublime/controller.h
/usr/include/kdevplatform/sublime/document.h
/usr/include/kdevplatform/sublime/mainwindow.h
/usr/include/kdevplatform/sublime/mainwindowoperator.h
/usr/include/kdevplatform/sublime/sublimedefs.h
/usr/include/kdevplatform/sublime/sublimeexport.h
/usr/include/kdevplatform/sublime/tooldocument.h
/usr/include/kdevplatform/sublime/urldocument.h
/usr/include/kdevplatform/sublime/view.h