This adds ManagedNetworkConfigurationHandler first pass

chromeos/network/onc/onc_signature.cc

Index: chromeos/network/onc/onc_signature.cc
diff --git a/chromeos/network/onc/onc_signature.cc b/chromeos/network/onc/onc_signature.cc
index 942fbdaaf0160fd0a2d296c8ec03b0f62c91464f..ba5315476c0758e8c2e51b1278e534034dcf045d 100644
--- a/chromeos/network/onc/onc_signature.cc
+++ b/chromeos/network/onc/onc_signature.cc
@@ -386,8 +386,9 @@ const OncValueSignature kToplevelConfigurationSignature = {
   Value::TYPE_DICTIONARY, toplevel_configuration_fields, NULL
 };
 
-const OncFieldSignature* GetFieldSignature(const OncValueSignature& signature,
-                                           const std::string& onc_field_name) {
+const OncFieldSignature* GetOncFieldSignature(
+    const OncValueSignature& signature,
+    const std::string& onc_field_name) {
   if (!signature.fields)
     return NULL;
   for (const OncFieldSignature* field_signature = signature.fields;
@@ -398,5 +399,19 @@ const OncFieldSignature* GetFieldSignature(const OncValueSignature& signature,
   return NULL;
 }
 
+const OncFieldSignature* GetShillFieldSignature(
+    const OncValueSignature& signature,
+    const std::string& shill_property_name) {
+  if (!signature.fields)
+    return NULL;
+  for (const OncFieldSignature* field_signature = signature.fields;
+       field_signature->onc_field_name != NULL; ++field_signature) {
+    if (shill_property_name == field_signature->shill_property_name)
+      return field_signature;
+  }
+  return NULL;
+}
+
+
 }  // namespace onc
 }  // namespace chromeos