This amends 64e6233252.
Automoc complains:
AutoMoc warning
---------------
"SRC:/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp"
includes the moc file "qgtk3dialoghelpers.moc", but does not contain a Q_OBJECT, Q_GADGET, Q_GADGET_EXPORT, Q_NAMESPACE, Q_NAMESPACE_EXPORT or Q_ENUM_NS macro.
AutoMoc: /home/tjmaciei/src/qt/qt6/qtbase/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp:0:1: note: No relevant classes found. No output generated.
Pick-to: 6.4 6.3 6.2 5.15
Change-Id: Ic6547f8247454b47baa8fffd170ea8a8ce0ed06c
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Ilya Fedin <fedin-ilja2010@ya.ru>