This adds a private extension API to use for simple networking

chromeos/network/onc/onc_translation_tables.h

 // 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.
 
 #ifndef CHROMEOS_NETWORK_ONC_ONC_TRANSLATION_TABLES_H_
 #define CHROMEOS_NETWORK_ONC_ONC_TRANSLATION_TABLES_H_
 
+#include <string>
+
+#include "chromeos/chromeos_export.h"
+
 namespace chromeos {
 namespace onc {
 
 struct StringTranslationEntry {
   const char* onc_value;
   const char* shill_value;
 };
 
 // These tables contain the mapping from ONC strings to Shill strings.
 // These are NULL-terminated arrays.
-extern const StringTranslationEntry kNetworkTypeTable[];
-extern const StringTranslationEntry kVPNTypeTable[];
-extern const StringTranslationEntry kWiFiSecurityTable[];
-extern const StringTranslationEntry kEAPOuterTable[];
-extern const StringTranslationEntry kEAP_PEAP_InnerTable[];
-extern const StringTranslationEntry kEAP_TTLS_InnerTable[];
+CHROMEOS_EXPORT extern const StringTranslationEntry kNetworkTypeTable[];
+CHROMEOS_EXPORT extern const StringTranslationEntry kVPNTypeTable[];
+CHROMEOS_EXPORT extern const StringTranslationEntry kWiFiSecurityTable[];
+CHROMEOS_EXPORT extern const StringTranslationEntry kEAPOuterTable[];
+CHROMEOS_EXPORT extern const StringTranslationEntry kEAP_PEAP_InnerTable[];
+CHROMEOS_EXPORT extern const StringTranslationEntry kEAP_TTLS_InnerTable[];
+
+// Translate individual strings to Shill using the above tables.
+CHROMEOS_EXPORT bool TranslateStringToShill(
+    const StringTranslationEntry table[],
+    const std::string& onc_value,
+    std::string* shill_value);
+
+// Translate individual strings to ONC using the above tables.
+CHROMEOS_EXPORT bool TranslateStringToONC(const StringTranslationEntry table[],
+                                          const std::string& shill_value,
+                                          std::string* onc_value);
 
 }  // namespace onc
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_ONC_ONC_TRANSLATION_TABLES_H_