hg: openjfx/9-dev/rt: 8159383: Mouse hover on Webview scroll bar leads to NPE in ScrollBarThemeImpl.hitTest

[chien.yang at oracle.com]

Changeset: a69bb28fa5a6
Author:    ckyang
Date:      2016-06-15 15:07 -0700
URL:       http://hg.openjdk.java.net/openjfx/9-dev/rt/rev/a69bb28fa5a6

8159383: Mouse hover on Webview scroll bar leads to NPE in ScrollBarThemeImpl.hitTest
Reviewed-by: kcr

! modules/web/src/main/java/com/sun/javafx/webkit/theme/ScrollBarWidgetHelper.java