[9] Review request for 8166683: On macOS (Mac OS X) getting a ScreenMenuBar when not running "com.apple.laf.AquaLookAndFeel"

[Alexander Zvegintsev]

Hello,

please review the fix
http://cr.openjdk.java.net/~azvegint/jdk/9/8166683/00/

for the issue

https://bugs.openjdk.java.net/browse/JDK-8166683

This fix adds support for ScreenMenuBar for L&F's other than Aqua.

With this fix it is enabled by default if apple.laf.useScreenMenuBar 
property is true.

This behavior can be disabled by setting 
apple.laf.disableForcedScreenMenuBar property to true.

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Thanks,
Alexander.