D6829: Add ability to use the new kauth helper in file ioslave

[Chinmoy Ranjan Pradhan]

chinmoyr added a dependent revision: D6831: Make use of kauth helper in methods 
of file ioslave.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D6829

To: chinmoyr
Cc: #frameworks