Port KonqSessiondlg and KonqSessionManager away from KTempDir

Authored by ahmadsamir on Oct 20 2019, 9:21 AM.

Description

Port KonqSessiondlg and KonqSessionManager away from KTempDir

Test Plan: The code compiles

Reviewers: dfaure, stefanocrocco, vkrause

Reviewed By: vkrause

Maniphest Tasks: T11559

Differential Revision: https://phabricator.kde.org/D24775