Fixes: NB#167210 New: Changes: don't consider unmapped windows when checking the transient parent for dialogs
Fixes: NB#167210
New:
Changes: don't consider unmapped windows when checking the transient parent
for dialogs

RevBy:
Details:

nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,siraj/mcompositor,nemomobile-graveyard/mcompositor,siraj/mcompositor,siraj/mcompositor,nemomobile-graveyard/mcompositor,siraj/mcompositor,nemomobile-graveyard/mcompositor