[Integrated] RFR: 8239822: Intermittent unit test failures in RegionCSSTest

[Kevin Rushforth]

Changeset: c3ee1a30
Author:    Kevin Rushforth <kcr at openjdk.org>
Date:      2020-02-25 14:01:57 +0000
URL:       https://git.openjdk.java.net/jfx/commit/c3ee1a30

8239822: Intermittent unit test failures in RegionCSSTest

Reviewed-by: aghaisas

! modules/javafx.graphics/src/test/java/test/com/sun/javafx/css/StyleManagerTest.java
! modules/javafx.graphics/src/test/java/test/javafx/css/Node_cssStateTransition_Test.java
! modules/javafx.graphics/src/test/java/test/javafx/scene/CssStyleHelperTest.java