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

chrome/browser/extensions/api/gcd_private/privet_v3_session.cc

 // Copyright 2014 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 "chrome/browser/extensions/api/gcd_private/privet_v3_session.h"
 
 #include "base/base64.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/location.h"
@@ skipping 60 matching lines @@
   return response.GetString(key, &base64) && base::Base64Decode(base64, value);
 }
 
 bool ContainsString(const base::DictionaryValue& dictionary,
                     const std::string& key,
                     const std::string& expected_value) {
   const base::ListValue* list_of_string = nullptr;
   if (!dictionary.GetList(key, &list_of_string))
     return false;
 
-  for (const base::Value* value : *list_of_string) {
+  for (const auto& value : *list_of_string) {
     std::string string_value;
     if (value->GetAsString(&string_value) && string_value == expected_value)
       return true;
   }
   return false;
 }
 
 std::unique_ptr<base::DictionaryValue> GetJson(const net::URLFetcher* source) {
   if (!source->GetStatus().is_success())
     return nullptr;
@@ skipping 415 matching lines @@
   // Only session with pairing in process needs to be canceled. Paired sessions
   // (in https mode) does not need to be canceled.
   if (session_id_.empty() || use_https_)
     return;
   base::DictionaryValue input;
   input.SetString(kPrivetV3KeySessionId, session_id_);
   StartPostRequest(kPrivetV3PairingCancelPath, input, MessageCallback());
 }
 
 }  // namespace extensions