Initialize gtk syles before first run dialog. (Missed in r17104)
Initialize gtk syles before first run dialog. (Missed in r17104)

BUG=none
TEST=Linux first run dialog should be properly styled?
Review URL: http://codereview.chromium.org/115890

git-svn-id: http://src.chromium.org/svn/trunk/src@17130 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 9a32c20c67612c22e0cb42f10cda00f61810f790
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