[8u] Code Review Request: RT-21495 "ScrollPane doesn't take content size into account on USE_COMPUTED_SIZE"

[David Grieve]

Hi Jonathan, Martin,

Please review https://javafx-jira.kenai.com/browse/RT-21495. 

A patch is attached to the bug that follows the comment I added to the bug on 
January 13th. The patch addresses Alexander's observation re: potential NPE.