Use std::unique_ptr to express ownership of base::Value in PolicyMap::Entry

chrome/browser/chromeos/login/saml/saml_browsertest.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 <cstring>
 #include <memory>
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 997 matching lines @@
   // Set up fake networks.
   DBusThreadManager::Get()
       ->GetShillManagerClient()
       ->GetTestInterface()
       ->SetupDefaultEnvironment();
 }
 
 void SAMLPolicyTest::SetSAMLOfflineSigninTimeLimitPolicy(int limit) {
   policy::PolicyMap user_policy;
   user_policy.Set(policy::key::kSAMLOfflineSigninTimeLimit,
-                  policy::POLICY_LEVEL_MANDATORY,
-                  policy::POLICY_SCOPE_USER,
+                  policy::POLICY_LEVEL_MANDATORY, policy::POLICY_SCOPE_USER,
                   policy::POLICY_SOURCE_CLOUD,
-                  new base::FundamentalValue(limit),
-                  NULL);
+                  base::WrapUnique(new base::FundamentalValue(limit)), nullptr);
   provider_.UpdateChromePolicy(user_policy);
   base::RunLoop().RunUntilIdle();
 }
 
 void SAMLPolicyTest::EnableTransferSAMLCookiesPolicy() {
   em::ChromeDeviceSettingsProto& proto(device_policy_->payload());
   proto.mutable_saml_settings()->set_transfer_saml_cookies(true);
 
   base::RunLoop run_loop;
   std::unique_ptr<CrosSettings::ObserverSubscription> observer =
@@ skipping 330 matching lines @@
       chrome::NOTIFICATION_SESSION_STARTED,
       content::NotificationService::AllSources());
 
   OobeScreenWaiter(OobeScreen::SCREEN_CONFIRM_PASSWORD).Wait();
   SendConfirmPassword("fake_password");
   // Login should finish login and a session should start.
   session_start_waiter.Wait();
 }
 
 }  // namespace chromeos