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

chrome/browser/extensions/api/networking_private/networking_private_chromeos_apitest.cc

 // Copyright 2013 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 <memory>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
@@ skipping 577 matching lines @@
       "        \"Passphrase\": \"passphrase\","
       "        \"Recommended\": [ \"AutoConnect\", \"Passphrase\" ],"
       "        \"Security\": \"WPA-PSK\" }"
       "    }"
       "  ],"
       "  \"Certificates\": [],"
       "  \"Type\": \"UnencryptedConfiguration\""
       "}";
 
   policy::PolicyMap policy;
-  policy.Set(policy::key::kOpenNetworkConfiguration,
-             policy::POLICY_LEVEL_MANDATORY, policy::POLICY_SCOPE_USER,
-             policy::POLICY_SOURCE_CLOUD,
-             new base::StringValue(user_policy_blob), nullptr);
+  policy.Set(
+      policy::key::kOpenNetworkConfiguration, policy::POLICY_LEVEL_MANDATORY,
+      policy::POLICY_SCOPE_USER, policy::POLICY_SOURCE_CLOUD,
+      base::WrapUnique(new base::StringValue(user_policy_blob)), nullptr);
   provider_.UpdateChromePolicy(policy);
 
   content::RunAllPendingInMessageLoop();
 
   EXPECT_TRUE(RunNetworkingSubtest("getManagedProperties")) << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(NetworkingPrivateChromeOSApiTest, GetErrorState) {
   chromeos::NetworkHandler::Get()->network_state_handler()->SetLastErrorForTest(
       kWifi1ServicePath, "TestErrorState");
@@ skipping 95 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(NetworkingPrivateChromeOSApiTest, CellularSimPuk) {
   SetupCellular();
   // Lock the SIM
   device_test_->SetSimLocked(kCellularDevicePath, true);
   EXPECT_TRUE(RunNetworkingSubtest("cellularSimPuk")) << message_;
 }
 
 }  // namespace