Chrome Frame has been retired, more info here: https://developers.google.com/chrome/chrome-frame/ Removed from SoM theme some time ago.
Merge branch 'hotfix/1.0-chromeframe' into develop

* hotfix/1.0-chromeframe:
  Chrome Frame has been retired, more info here: https://developers.google.com/chrome/chrome-frame/ Removed from SoM theme some time ago.