use the correct string converstion util
use the correct string converstion util

git-svn-id: http://src.chromium.org/svn/trunk/src@1437 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: d5c9e8c006c3651f46749515dde4118efb7ad72f
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