[9, 8u] review request: 8139317: [Mac] SecurityException when constructing WebView from JFXPanel application

[Kevin Rushforth]

Chien,

Please review the following fix when running WebView in a JFXPanel on 
Mac with a security manager enabled:

https://bugs.openjdk.java.net/browse/JDK-8139317
http://cr.openjdk.java.net/~kcr/8139317/webrev.00/

-- Kevin