Fallback behaviour was broken for forcing express version
Fallback behaviour was broken for forcing express version

(sorry for all the noise, this one has green tries now)

Review URL: https://chromiumcodereview.appspot.com/9703101
old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google