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

chromeos/network/network_util.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/network_util.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/strings/string_number_conversions.h"
@@ skipping 109 matching lines @@
       result.push_back(':');
     result.push_back(base::ToUpperASCII(shill_mac_address[i]));
   }
   return result;
 }
 
 bool ParseCellularScanResults(const base::ListValue& list,
                               std::vector<CellularScanResult>* scan_results) {
   scan_results->clear();
   scan_results->reserve(list.GetSize());
-  for (base::ListValue::const_iterator it = list.begin();
-       it != list.end(); ++it) {
-    if (!(*it)->IsType(base::Value::TYPE_DICTIONARY))
+  for (const auto& value : list) {
+    const base::DictionaryValue* dict;
+    if (!value->GetAsDictionary(&dict))
       return false;
     CellularScanResult scan_result;
-    const base::DictionaryValue* dict =
-        static_cast<const base::DictionaryValue*>(*it);
     // If the network id property is not present then this network cannot be
     // connected to so don't include it in the results.
     if (!dict->GetStringWithoutPathExpansion(shill::kNetworkIdProperty,
                                              &scan_result.network_id))
       continue;
     dict->GetStringWithoutPathExpansion(shill::kStatusProperty,
                                         &scan_result.status);
     dict->GetStringWithoutPathExpansion(shill::kLongNameProperty,
                                         &scan_result.long_name);
     dict->GetStringWithoutPathExpansion(shill::kShortNameProperty,
@@ skipping 75 matching lines @@
 std::string TranslateShillTypeToONC(const std::string& shill_type) {
   if (shill_type == shill::kTypeEthernet)
     return ::onc::network_type::kEthernet;
   std::string onc_type;
   onc::TranslateStringToONC(onc::kNetworkTypeTable, shill_type, &onc_type);
   return onc_type;
 }
 
 }  // namespace network_util
 }  // namespace chromeos