[8u20] Request for approval: JDK-8031573 [macosx] Checkmarks of JCheckBoxMenuItems aren't rendered in high resolution on Retina

[Alexander Scherbatiy]

Hello,

Could you approve the backport of the fix to jdk8u-dev.

The bug: https://bugs.openjdk.java.net/browse/JDK-8031573
The webrev: http://cr.openjdk.java.net/~alexsch/8031573/webrev.00
The review thread: 
http://mail.openjdk.java.net/pipermail/macosx-port-dev/2014-February/006445.html 

The jdk 9 changeset: 
http://hg.openjdk.java.net/jdk9/client/jdk/rev/ae53ebce5fa3

Thanks,
Alexandr.