linuxmint/Cinnamon — pull request #1751 by mtwebster (2013-02-27 01:51:26+00:00)
Title: Instead of an obscure Gtk setting, allow a configurable value for the panel/clutter DND drag threshold

Default to 8 (which is the gtk default)

This should help people (like me) that are prone to accidentally dragging window list items or panel launchers.