Replace deprecated KFilterDev::device with KCompressionDevice in KBlackBox
Summary:
KFilterDev::device is deprecated:
https://api.kde.org/frameworks/karchive/html/classKFilterDev.html
This patch replaces it with KCompressionDevice as recommended.
Test Plan:
- Compile and install KBlackBox. No warnings about deprecation should be shown.
- Run KBlackBox. The theme should be loaded as expected.
Reviewers: KDE Games, aacid
Reviewed By: aacid
Subscribers: kde-games-devel
Differential Revision: https://phabricator.kde.org/D23290