This adds Cellular to the Shill to ONC translation.

chromeos/network/onc/onc_translation_tables.h

Index: chromeos/network/onc/onc_translation_tables.h
diff --git a/chromeos/network/onc/onc_translation_tables.h b/chromeos/network/onc/onc_translation_tables.h
index 276b1323c27489fd04e8e9c9905cf496419c5209..d053e0bbbb583fd4f1f57189d74f3e195c0ee845 100644
--- a/chromeos/network/onc/onc_translation_tables.h
+++ b/chromeos/network/onc/onc_translation_tables.h
@@ -5,6 +5,10 @@
 #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 {
 
@@ -15,12 +19,23 @@ struct StringTranslationEntry {
 
 // 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