cleaning up the AWT

[Thomas Fitzsimmons]

Hi,

Now that we have Qt peers, we need to be more diligent about not having
gtk-peer specific code in java.awt.  Currently, there are two main
places where such code has crept in: the native event queue interfacing
in EventQueue, and setBoundsCallback in Window.  My plan is to re-work
these two sections of code to remove these references.  Since these are
critical areas of java.awt, there may be a brief period of instability.
I'll make sure that Swing continues to work with every patch I commit,
so as not to disrupt its development.

Tom