Rewrite simple uses of base::ListValue::Append(base::Value*) on CrOS.

chromeos/network/onc/onc_translator_shill_to_onc.cc

Index: chromeos/network/onc/onc_translator_shill_to_onc.cc
diff --git a/chromeos/network/onc/onc_translator_shill_to_onc.cc b/chromeos/network/onc/onc_translator_shill_to_onc.cc
index d1026aac949a0b61f678b50f02c9da56f853e27e..2e62462a6b6a2f9315381eb90101b115a8ddb699 100644
--- a/chromeos/network/onc/onc_translator_shill_to_onc.cc
+++ b/chromeos/network/onc/onc_translator_shill_to_onc.cc
@@ -694,7 +694,7 @@ void ShillToONCTranslator::TranslateAndAddListOfObjects(
     // If the nested object couldn't be parsed, simply omit it.
     if (nested_object->empty())
       continue;
-    result->Append(nested_object.release());
+    result->Append(std::move(nested_object));
   }
   // If there are no entries in the list, there is no need to expose this field.
   if (result->empty())