bustage fix, include build_config for platform defines.
bustage fix, include build_config for platform defines.



git-svn-id: http://src.chromium.org/svn/trunk/src@684 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: fe9815e6980541ebe6bff070f3b72c7f8d5a7d02
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