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

components/policy/core/common/generate_policy_source_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 <cstring>
 #include <memory>
 #include <string>
 
+#include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "components/policy/core/common/policy_details.h"
 #include "components/policy/core/common/schema.h"
 #include "policy/policy_constants.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // This unittest tests the code generated by
 // chrome/tools/build/generate_policy_source.py.
 
@@ skipping 191 matching lines @@
 
   // If policy not configured yet, set the enterprise default.
   SetEnterpriseUsersDefaults(&policy_map);
 
   const base::Value* multiprof_behavior =
       policy_map.GetValue(key::kChromeOsMultiProfileUserBehavior);
   base::StringValue expected("primary-only");
   EXPECT_TRUE(expected.Equals(multiprof_behavior));
 
   // If policy already configured, it's not changed to enterprise defaults.
-  policy_map.Set(key::kChromeOsMultiProfileUserBehavior,
-                 POLICY_LEVEL_MANDATORY,
-                 POLICY_SCOPE_USER,
-                 POLICY_SOURCE_CLOUD,
-                 new base::StringValue("test_value"),
-                 NULL);
+  policy_map.Set(key::kChromeOsMultiProfileUserBehavior, POLICY_LEVEL_MANDATORY,
+                 POLICY_SCOPE_USER, POLICY_SOURCE_CLOUD,
+                 base::WrapUnique(new base::StringValue("test_value")),
+                 nullptr);
   SetEnterpriseUsersDefaults(&policy_map);
   multiprof_behavior =
       policy_map.GetValue(key::kChromeOsMultiProfileUserBehavior);
   expected = base::StringValue("test_value");
   EXPECT_TRUE(expected.Equals(multiprof_behavior));
 }
 #endif
 
 }  // namespace policy