Request for approval : 7155887 ComboBox does not display focus outline in GTK L&F

[Jonathan Lu]

Hi all,

Here's a request of porting fix 7155887 back to JDK7, could you please 
help to review it?

Bug: http://bugs.sun.com/view_bug.do?bug_id=7155887

Change set: http://hg.openjdk.java.net/jdk8/jdk8/jdk/rev/b57167b71169

Thread where it was reviewed,
http://mail.openjdk.java.net/pipermail/swing-dev/2012-March/001941.html

Thanks,
Jonathan