hg: jdk8u/jdk8u20-dev/jdk: 8049418: [macosx] PopupMenuListener.popupMenuWillBecomeVisible is not called for empty combobox on MacOS/aqua look and feel

[rob.mckenna at oracle.com]

Changeset: 1465fee32e79
Author:    azvegint
Date:      2014-07-08 11:36 +0400
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u20-dev/jdk/rev/1465fee32e79

8049418: [macosx] PopupMenuListener.popupMenuWillBecomeVisible is not called for empty combobox on MacOS/aqua look and feel
Reviewed-by: anthony, pchelko

! src/macosx/classes/com/apple/laf/AquaComboBoxPopup.java