[8u40] Review request for RT-23363: Mac: runtimeException when drawing to a huge window

[Morris Meyer]

Folks,

I've uploaded the initial webrev for this issue for review.

Thanks much!

         --morris meyer

JIRA - https://javafx-jira.kenai.com/browse/RT-23363
WEBREV - http://cr.openjdk.java.net/~morris/RT-23363.01