Added CUPS requirement for chromium build. It is need to support printing.
Added CUPS requirement for chromium build. It is need to support printing.

BUG=none
TEST=Make sure that libcupsys2-dev package get installed.

Review URL: http://codereview.chromium.org/2038011

git-svn-id: http://src.chromium.org/svn/trunk/src@47023 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 2b1315c82015d5a3122ab3c2dd5e6f319c0b4ce5
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