QFileDialog::selectedMimeTypeFilter() returns either an empty
filter in the case when a platform file dialog doesn't implement
mime type filters, or initiallySelectedMimeTypeFilter() in the
case of Qt's file dialog. In both cases the result is incorrect.
Make it return a mime type filter corresponding to a selected
name filter. As a result, tst_QFiledialog::setMimeTypeFilters()
has to be fixed: QFileDialog::selectMimeTypeFilter() can't select
a name filter for an invalid mime type, and "application/json"
is not supported by RHEL 6.6, so replace it by "application/pdf".
Change-Id: I58d3be860a9b5e8a72cba86d74b520178115a812
Reviewed-by: David Faure <david.faure@kdab.com>
4d73ab73c8