Fix regression in upgrade detection in about dialog.
Fix regression in upgrade detection in about dialog.

BUG=67478
TEST=Install SxS, start chrome, open about dialog, notice that it doesn't say to restart if there's no update.

Review URL: http://codereview.chromium.org/6076008

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@70612 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser