<AWT Dev> [14] Review Request: 8229515 [macos] access to window property of NSView on wrong thread

[Sergey Bylokhov]

Hello.
Please review the fix for JDK 14.

Bug: https://bugs.openjdk.java.net/browse/JDK-8229515
Fix: http://cr.openjdk.java.net/~serb/8229515/webrev.00

The access to the "window" property of the NSView was moved to the appkit thread,
since the Cocoa components should be used on this thread only.

-- 
Best regards, Sergey.