8u40 review request: RT-38861 Rendering is disturbed by mouseover or focus move checkbox and radio of WebView

[Anton Tarasov]

Hi Kevin, Leonid,

Please, review a simple fix:

http://cr.openjdk.java.net/~ant/RT-38861/webrev.0
https://javafx-jira.kenai.com/browse/RT-38861

(This is a post-push review request).

Thanks,
Anton.