[7u] Request for approval for CR 8005920 - After pressing combination Windows Key and M key, the frame, the instruction and the dialog can't be minimized.

[Konstantin Shefov]

Hello,

Please review a fix for the issue:

8005920 - After pressing combination Windows Key and M key, the frame, 
the instruction and the dialog can't be minimized.

Direct backport form jdk 8.

http://bugs.sun.com/view_bug.do?bug_id=8005920

The webrev is http://cr.openjdk.java.net/~kshefov/8005920_7u/webrev.00/

Thanks,
Konstantin