QWidget::resize() or QWidget::move() set the new size/position values
and send events. The spontaneous events generated by the platform
should be ignored in that case.

Task-number: QTBUG-30744
Task-number: QTBUG-38768
Task-number: QTBUG-32590
Change-Id: I9c0ae38842ed76a8a88ca64fdc9bbe106b2766b7
Reviewed-by: Andy Shaw <andy.shaw@digia.com>