Updating trunk VERSION from 683.0 to 684.0
Updating trunk VERSION from 683.0 to 684.0

git-svn-id: http://src.chromium.org/svn/trunk/src@76039 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 83e793f5efdc95fb0f14a7a73caeab0fd5831ee6
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