<AWT Dev> [10] Review Request: 8186559 [macos] the screen location is wrong when using AWT/SWT bridge with dual monitors

[Sergey Bylokhov]

Hello,
Please review the fix for jdk10.

Bug: https://bugs.openjdk.java.net/browse/JDK-8186559
Webrev can be found at: http://cr.openjdk.java.net/~serb/8186559/webrev.00

When our NSView is embedded in native to the SWT-based NSWindow we 
incorrectly fetch the location of the NSView. The reason is that we use 
wrong screen when we flip the location. Currently we use [mainScreen] - 
which "returns the screen object containing the window with the keyboard 
focus", but we need the first screen which contains 0,0 coordinates.

In the fix the utility method is reused which internally uses
[[NSScreen screens] objectAtIndex:0]

-- 
Best regards, Sergey.