1. Both functions leaked the nodes in priv->children
2. st_container_remove_all wasn't properly updating first_child and last_child
3. remove_all() is almost never right since it won't cause signal handlers
on the children to be removed. In the rare cases where it might be needed
the caller can simply use clutter_container_remove().
https://bugzilla.gnome.org/show_bug.cgi?id=640781
This is a base class to make it easier to
gain a consistent look for system modal dialogs.
It handles creating a darkened backdrop behind the dialog, setting
up buttons in the dialog, keynav, etc.
https://bugzilla.gnome.org/show_bug.cgi?id=637187
