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

components/policy/core/common/cloud/component_cloud_policy_updater_unittest.cc

 // Copyright (c) 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 "components/policy/core/common/cloud/component_cloud_policy_updater.h"
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/ptr_util.h"
@@ skipping 91 matching lines @@
   ASSERT_EQ(store_->policy().end(), store_->policy().begin());
 
   builder_.policy_data().set_policy_type(
       dm_protocol::kChromeExtensionPolicyType);
   builder_.policy_data().set_settings_entity_id(kTestExtension);
   builder_.payload().set_download_url(kTestDownload);
   builder_.payload().set_secure_hash(crypto::SHA256HashString(kTestPolicy));
 
   PolicyNamespace ns(POLICY_DOMAIN_EXTENSIONS, kTestExtension);
   PolicyMap& policy = expected_bundle_.Get(ns);
-  policy.Set("Name",
-             POLICY_LEVEL_MANDATORY,
-             POLICY_SCOPE_USER,
+  policy.Set("Name", POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
              POLICY_SOURCE_CLOUD,
-             new base::StringValue("disabled"),
-             NULL);
-  policy.Set("Second",
-             POLICY_LEVEL_RECOMMENDED,
-             POLICY_SCOPE_USER,
+             base::WrapUnique(new base::StringValue("disabled")), nullptr);
+  policy.Set("Second", POLICY_LEVEL_RECOMMENDED, POLICY_SCOPE_USER,
              POLICY_SOURCE_CLOUD,
-             new base::StringValue("maybe"),
-             NULL);
+             base::WrapUnique(new base::StringValue("maybe")), nullptr);
 }
 
 void ComponentCloudPolicyUpdaterTest::TearDown() {
   updater_.reset();
   task_runner_->RunUntilIdle();
 }
 
 std::unique_ptr<em::PolicyFetchResponse>
 ComponentCloudPolicyUpdaterTest::CreateResponse() {
   builder_.Build();
@@ skipping 216 matching lines @@
   // Now cancel that update before the download completes.
   EXPECT_CALL(store_delegate_, OnComponentCloudPolicyStoreUpdated()).Times(0);
   updater_->CancelUpdate(
       PolicyNamespace(POLICY_DOMAIN_EXTENSIONS, kTestExtension));
   task_runner_->RunUntilIdle();
   Mock::VerifyAndClearExpectations(&store_delegate_);
   EXPECT_FALSE(fetcher_factory_.GetFetcherByID(0));
 }
 
 }  // namespace policy