Migration gwt 2.4 to gwt 2.5

[rfa]

Hi,

After a recompile with gwt 2.5. I have a problem of latency in Chrome (
Listgrid display and modification of records) but it works fine in Firefox.

- Chrome 22.0.1229.94 m (latency)
- Firefox 16.0.2 (works fine)
- http://www.smartclient.com/builds/SmartGWT/3.0p/LGPL/2012-10-29/smartgwt-3.0p.zip
- Gwt : gwt-2.5.0

Thanks.