[effects/screenshot] Use override keyword
Test Plan: Compiles.
Reviewers: KWin, davidedmundson
Reviewed By: KWin, davidedmundson
Subscribers: davidedmundson, kwin
Tags: KWin
Differential Revision: https://phabricator.kde.org/D16261
zzag | Oct 16 2018, 11:39 PM |