Add MacAddress to ONC and networkingPrivate

chromeos/network/device_state.h

Index: chromeos/network/device_state.h
diff --git a/chromeos/network/device_state.h b/chromeos/network/device_state.h
index 1da679cd858d74843cb71c44d707c6d329e7298a..5f4486d12c1657978b210114a1d66cc9493f8fd2 100644
--- a/chromeos/network/device_state.h
+++ b/chromeos/network/device_state.h
@@ -32,9 +32,6 @@ class CHROMEOS_EXPORT DeviceState : public ManagedState {
   // Accessors
   const std::string& mac_address() const { return mac_address_; }
 
-  // Returns |mac_address_| in aa:bb format.
-  std::string GetFormattedMacAddress() const;
-
   // Cellular specific accessors
   const std::string& home_provider_id() const { return home_provider_id_; }
   bool allow_roaming() const { return allow_roaming_; }