<Swing Dev> [8] Review request for 7104594 [macosx] Test closed/javax/swing/JFrame/4962534/bug4962534 expects Metal L&F by default

[Konstantin Shefov]

Could you please look at this test fix?

Webrev: http://cr.openjdk.java.net/~kshefov/7104594/webrev.01/

It was test for Metal LaF, so I forced LaF to be Metal even on MacOS. 
Now the test passes on MacOSX.
I also made Swing methods run on EDT.
Test can be moved to OpenJDK as it is already in OpenJDK 6.

Thanks,
Konstantin