[9] Review request for 8074481: [macosx] Menu items are appearing on top of other windows

[Anton Nashatyrev]

Hello,
    could you please review the following fix:
fix: http://cr.openjdk.java.net/~anashaty/8074481/9/webrev.00/ 
<http://cr.openjdk.java.net/%7Eanashaty/8074481/9/webrev.00/>
bug: https://bugs.openjdk.java.net/browse/JDK-8074481

    Problem: applet popup windows are not closed when other native 
window activated

    Fix: another variant to fix the JDK-8001161 
<https://bugs.openjdk.java.net/browse/JDK-8001161> which causes such 
behavior (thanks Anton Tarasov for suggested fix idea)

Thanks!
Anton.