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

chromeos/network/onc/onc_mapper.cc

 // 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.
 
 #include "chromeos/network/onc/onc_mapper.h"
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "chromeos/network/onc/onc_signature.h"
@@ skipping 98 matching lines @@
 
 std::unique_ptr<base::ListValue> Mapper::MapArray(
     const OncValueSignature& array_signature,
     const base::ListValue& onc_array,
     bool* nested_error) {
   DCHECK(array_signature.onc_array_entry_signature != NULL)
       << "Found missing onc_array_entry_signature.";
 
   std::unique_ptr<base::ListValue> result_array(new base::ListValue);
   int original_index = 0;
-  for (base::ListValue::const_iterator it = onc_array.begin();
-       it != onc_array.end(); ++it, ++original_index) {
-    const base::Value* entry = *it;
-
+  for (const auto& entry : onc_array) {
     std::unique_ptr<base::Value> result_entry;
     result_entry = MapEntry(original_index,
                             *array_signature.onc_array_entry_signature,
                             *entry,
                             nested_error);
     if (result_entry.get() != NULL)
       result_array->Append(result_entry.release());
     else
       DCHECK(*nested_error);
+    ++original_index;
   }
   return result_array;
 }
 
 std::unique_ptr<base::Value> Mapper::MapEntry(
     int index,
     const OncValueSignature& signature,
     const base::Value& onc_value,
     bool* error) {
   return MapValue(signature, onc_value, error);
 }
 
 }  // namespace onc
 }  // namespace chromeos