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

components/policy/core/common/cloud/user_cloud_policy_manager_unittest.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 "components/policy/core/common/cloud/user_cloud_policy_manager.h"
 
 #include "base/callback.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/sequenced_task_runner.h"
 #include "components/policy/core/common/cloud/cloud_external_data_manager.h"
 #include "components/policy/core/common/cloud/mock_user_cloud_policy_store.h"
 #include "components/policy/core/common/external_data_fetcher.h"
 #include "components/policy/core/common/mock_configuration_policy_provider.h"
 #include "components/policy/core/common/policy_types.h"
 #include "components/policy/core/common/schema_registry.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace em = enterprise_management;
 
 using testing::AnyNumber;
 using testing::AtLeast;
 using testing::Mock;
 using testing::_;
 
 namespace policy {
 namespace {
 
 class UserCloudPolicyManagerTest : public testing::Test {
  protected:
   UserCloudPolicyManagerTest() : store_(NULL) {}
 
   void SetUp() override {
     // Set up a policy map for testing.
-    policy_map_.Set("key",
-                    POLICY_LEVEL_MANDATORY,
-                    POLICY_SCOPE_USER,
+    policy_map_.Set("key", POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
                     POLICY_SOURCE_CLOUD,
-                    new base::StringValue("value"),
-                    NULL);
+                    base::WrapUnique(new base::StringValue("value")), nullptr);
     expected_bundle_.Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))
         .CopyFrom(policy_map_);
   }
 
   void TearDown() override {
     if (manager_) {
       manager_->RemoveObserver(&observer_);
       manager_->Shutdown();
     }
   }
@@ skipping 36 matching lines @@
   store_->NotifyStoreLoaded();
   EXPECT_TRUE(expected_bundle_.Equals(manager_->policies()));
   EXPECT_TRUE(manager_->IsInitializationComplete(POLICY_DOMAIN_CHROME));
   EXPECT_CALL(*store_, Clear());
   manager_->DisconnectAndRemovePolicy();
   EXPECT_FALSE(manager_->core()->service());
 }
 
 }  // namespace
 }  // namespace policy