D10568: Handle privilege operation confirmation prompts in SlaveBase

[Chinmoy Ranjan Pradhan]

chinmoyr added a dependent revision: D10818: Store PolicyKit action which the 
slave is authorized to perform.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D10568

To: chinmoyr, dfaure
Cc: fvogt, #frameworks, michaelh, kmorwinski