[7u4] Request for approval: 7132793: [macosx] setWheelScrollEnabled action reversed

[Alexander Potochkin]

Requesting approval to commit fix for CR 7132793.

http://cr.openjdk.java.net/~alexp/7132793/webrev.01/

Reviewed by Sergey Bylokhov and Artem Ananiev

http://mail.openjdk.java.net/pipermail/macosx-port-dev/2012-February/003295.html

the bug's description is here:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7132793

The method's implementation contradicts its specification,
the regression test fails and there is a potential JCK problem.

The final version of the fix is safe and simple.

Thanks
alexp