hg: jdk9/client/jdk: 8178996: [macos] JComboBox doesn't display popup in mixed JavaFX Swing Application on 8u131 and Mac OS 10.12

[alexander.zvegintsev at oracle.com]

Changeset: 4a610c6d0b9c
Author:    azvegint
Date:      2017-05-12 15:01 +0300
URL:       http://hg.openjdk.java.net/jdk9/client/jdk/rev/4a610c6d0b9c

8178996: [macos] JComboBox doesn't display popup in mixed JavaFX Swing Application on 8u131 and Mac OS 10.12
Reviewed-by: serb, ssadetsky

! src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java