<Swing Dev> [11] RFR JDK-8197825: [Test] Intermiitent timeout with javax/swing JColorChooser Test

[Prasanta Sadhukhan]

Hi All,

Please review a testfix seen in the recent sprint-run, whereby the test 
seems to times out .
Seems like test is issuing mouse events without waiting for robot to 
process those events.
Enhance the test to allow robot to process the events and also dispose 
of the frame once done,
so it should not bother other tests when run in bunch.

Bug: https://bugs.openjdk.java.net/browse/JDK-8197825
webrev: http://cr.openjdk.java.net/~psadhukhan/8197825/webrev.00/

Regards
Prasanta