Add back chromeos preferences include in profile.h
Add back chromeos preferences include in profile.h

BUG=none
TEST=none
TBR=brettw@chromium.org

Review URL: http://codereview.chromium.org/2868090

git-svn-id: http://src.chromium.org/svn/trunk/src@54414 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b9a572dea158c242449500dbb7302416467d860d
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