Use std::unique_ptr for base::DictionaryValue and base::ListValue's internal store.

chromeos/network/onc/onc_validator.cc

Index: chromeos/network/onc/onc_validator.cc
diff --git a/chromeos/network/onc/onc_validator.cc b/chromeos/network/onc/onc_validator.cc
index b3a25b79f03d6dc558f8496142793995e7eff931..a6189e8eccbe75c2205446a9ffb417a52be8b0e1 100644
--- a/chromeos/network/onc/onc_validator.cc
+++ b/chromeos/network/onc/onc_validator.cc
@@ -258,7 +258,7 @@ bool Validator::ValidateRecommendedField(
   }
 
   std::unique_ptr<base::ListValue> repaired_recommended(new base::ListValue);
-  for (const base::Value* entry : *recommended_list) {
+  for (const auto& entry : *recommended_list) {
     std::string field_name;
     if (!entry->GetAsString(&field_name)) {
       NOTREACHED();  // The types of field values are already verified.
@@ -418,7 +418,7 @@ bool Validator::ListFieldContainsValidValues(
   const base::ListValue* list = NULL;
   if (object.GetListWithoutPathExpansion(field_name, &list)) {
     path_.push_back(field_name);
-    for (const base::Value* entry : *list) {
+    for (const auto& entry : *list) {
       std::string value;
       if (!entry->GetAsString(&value)) {
         NOTREACHED();  // The types of field values are already verified.