D17529: [proxysetting] Fix build with NM 1.4

[Jan Grulich]

jgrulich accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R282 NetworkManagerQt

REVISION DETAIL
  https://phabricator.kde.org/D17529

To: wbauer, jgrulich
Cc: kde-frameworks-devel, michaelh, ngraham, bruns