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

chrome/utility/importer/nss_decryptor.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 "chrome/utility/importer/nss_decryptor.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <string>
@@ skipping 286 matching lines @@
   base::ReadFileToString(json_file, &json_content);
   std::unique_ptr<base::Value> parsed_json(
       base::JSONReader::Read(json_content));
   const base::DictionaryValue* password_dict;
   const base::ListValue* password_list;
   const base::ListValue* blacklist_domains;
   if (!parsed_json || !parsed_json->GetAsDictionary(&password_dict))
     return false;
 
   if (password_dict->GetList("disabledHosts", &blacklist_domains)) {
-    for (const base::Value* value : *blacklist_domains) {
+    for (const auto& value : *blacklist_domains) {
       std::string disabled_host;
       if (!value->GetAsString(&disabled_host))
         continue;
       forms->push_back(CreateBlacklistPasswordForm(disabled_host));
     }
   }
 
   if (password_dict->GetList("logins", &password_list)) {
-    for (const base::Value* value : *password_list) {
+    for (const auto& value : *password_list) {
       const base::DictionaryValue* password_detail;
       if (!value->GetAsDictionary(&password_detail))
         continue;
 
       FirefoxRawPasswordInfo raw_password_info;
       password_detail->GetString("hostname", &raw_password_info.host);
       password_detail->GetString("usernameField",
                                  &raw_password_info.username_element);
       password_detail->GetString("passwordField",
                                  &raw_password_info.password_element);
@@ skipping 46 matching lines @@
   }
   form->ssl_valid = form->origin.SchemeIsCryptographic();
   form->username_element = raw_password_info.username_element;
   form->username_value = Decrypt(raw_password_info.encrypted_username);
   form->password_element = raw_password_info.password_element;
   form->password_value = Decrypt(raw_password_info.encrypted_password);
   form->action = GURL(raw_password_info.form_action).ReplaceComponents(rep);
 
   return true;
 }