[8u] Review Request: (RT-37174) [Ensemble8] Progress Indicator sample: indeterminate progress indicator stops spinning on re-entering sample

[David Grieve]

Jonathan, Martin,

Please review
http://cr.openjdk.java.net/~dgrieve/RT-37174/webrev.00/ 
<http://cr.openjdk.java.net/%7Edgrieve/RT-37174/webrev.00/>
https://javafx-jira.kenai.com/browse/RT-37174