[8u60, 9] review request: RT-40417: [CSS] NPE in com.sun.javafx.css.StyleManager.findMatchingStyles

[Kevin Rushforth]

Jonathan and Leif,

Please review the fix for the following MT failure in StyleManager:

https://javafx-jira.kenai.com/browse/RT-40417
http://cr.openjdk.java.net/~kcr/RT-40417/webrev.00/

Details in the bug report.

-- Kevin