Revert "a11y: Remove AtkSelection implementation from combobox"
This reverts commit 7cecc8e5. It is impossible to use the selection object of the menu while it is collapsed (collapsed menus deselect everything for a start), so even though the original patch was correct, the followup issues are too big to solve this quickly to a release. https://bugzilla.gnome.org/show_bug.cgi?id=707786
Showing with 112 additions and 1 deletion