Combo Box is draggable on Mac

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create a JFrame with a JComboBox and run the program.
2. Click the combo box.
3. Drag it and the whole window drags.
4. Note that the JFrame's decorations have changed and that it is now draggable 
even when the combo box is not selected.

What is the expected output? What do you see instead?

We don't expect the combo box *or* the JFrame to be draggable.

Please use labels and text to provide additional information.

Original issue reported on code.google.com by kahuxtable on 13 Jul 2010 at 8:09