Also fix callers potentially violating this policy.

Change-Id: I630f1c544885df93a81e217e792363c0c2314108
Reviewed-on: http://codereview.qt.nokia.com/1186


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>