Added support for dynamically checking the browser for identity, which includes Chromium 12, 13, and some versions of 14. Responsibility for the expando was packaged in to the LocalObjects. The new NPVariantUtil.h is simply all the static NPVariant utilities from NPVariantProxy that strictly deal with NPVariants (done for dependency issues).
http://gwt-code-reviews.appspot.com/1469803/ -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
