[8u60, 9] Review request for RT-46189 [WebView] NPE when running WebEngine without WebView

[Anton Nashatyrev]

Hi Anton,

     could you please review the fix:
https://javafx-jira.kenai.com/browse/RT-46189
http://cr.openjdk.java.net/~anashaty/RT-46189/webrev.00/ 
<http://cr.openjdk.java.net/%7Eanashaty/RT-46189/webrev.00/>

Thanks!
Anton.