[Merge] lp:~gerboland/qtubuntu/select-correct-dialog into lp:qtubuntu

[Gerry Boland]

The proposal to merge lp:~gerboland/qtubuntu/select-correct-dialog into lp:qtubuntu has been updated.

Commit Message changed to:

Use correct parented/parentless dialog and utility window types from Mir

Fixes crash found in Qt's QWindow tests, where creating a parentless dialog caused an abort as we were trying to create a parented mir (modal) dialog with a null parent.

For more details, see:
https://code.launchpad.net/~gerboland/qtubuntu/select-correct-dialog/+merge/319467
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Your team Ubuntu Phablet Team is requested to review the proposed merge of lp:~gerboland/qtubuntu/select-correct-dialog into lp:qtubuntu.