hg: openjfx/8u20/rt: RT-37818: [CSS] Drag triggers NPE at com.sun.javafx.css.StyleManager.removeStylesheetContainer

[kevin.rushforth at oracle.com]

Changeset: 6290dc0f2b7b
Author:    David Grieve<david.grieve at oracle.com>
Date:      2014-07-09 20:47 -0400
URL:       http://hg.openjdk.java.net/openjfx/8u20/rt/rev/6290dc0f2b7b

RT-37818: [CSS] Drag triggers NPE at com.sun.javafx.css.StyleManager.removeStylesheetContainer

! modules/graphics/src/main/java/com/sun/javafx/css/StyleManager.java