This adds a private extension API to use for simple networking

chrome/browser/chromeos/options/wifi_config_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/options/wifi_config_view.h"
 
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
@@ skipping 1239 matching lines @@
 
 // static
 void WifiConfigView::ParseWiFiUIProperty(
     NetworkPropertyUIData* property_ui_data,
     Network* network,
     const std::string& key) {
   NetworkLibrary* network_library = CrosLibrary::Get()->GetNetworkLibrary();
   property_ui_data->ParseOncProperty(
       network->ui_data(),
       network_library->FindOncForNetwork(network->unique_id()),
-      base::StringPrintf("%s.%s", onc::kWiFi, key.c_str()));
+      base::StringPrintf("%s.%s", onc::network_config::kWiFi, key.c_str()));
 }
 
 // static
 void WifiConfigView::ParseWiFiEAPUIProperty(
     NetworkPropertyUIData* property_ui_data,
     Network* network,
     const std::string& key) {
   ParseWiFiUIProperty(
       property_ui_data, network,
       base::StringPrintf("%s.%s", onc::wifi::kEAP, key.c_str()));
 }
 
 }  // namespace chromeos