RFR [7u8]: 7166896: DocumentBuilder.parse(String uri) is not IPv6 enabled. It throws MalformedURLException

[Joe Wang]

Hi Paul,

This is now for 7u8, so I started a new thread.
As we discussed, I've removed the hack of using escapeNonUSAscii.  In 
this regard, we're now in sync with the source code in Xerces.

Here's the webrev:
http://cr.openjdk.java.net/~joehw/7u8/7166896/webrev/

Thanks,
Joe