Merge "When wifi ssid is empty, return WifiSsid.NONE"
am: 4af5c34

* commit '4af5c34a78ab65c22fa931bd9167f18b9211fd99':
  When wifi ssid is empty, return WifiSsid.NONE

Change-Id: I800fb4daf9773fff697e6cb3ac0c6734085248d8