Updating trunk VERSION build from 171.0 to 172.0
Updating trunk VERSION build from 171.0 to 172.0

git-svn-id: http://src.chromium.org/svn/trunk/src@12303 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 1c49e6b14d3fd9619c7c13aee657fed9b47adeb3
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser