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

components/policy/core/common/policy_statistics_collector_unittest.cc

 // Copyright (c) 2012 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/policy_statistics_collector.h"
 
 #include <cstring>
 #include <memory>
 #include <string>
 
@@ skipping 89 matching lines @@
     policy_map_.Clear();
     policy_statistics_collector_.reset(new TestPolicyStatisticsCollector(
         policy_details_.GetCallback(),
         chrome_schema_,
         &policy_service_,
         &prefs_,
         task_runner_));
   }
 
   void SetPolicy(const std::string& name) {
-    policy_map_.Set(name,
-                    POLICY_LEVEL_MANDATORY,
-                    POLICY_SCOPE_USER,
-                    POLICY_SOURCE_CLOUD,
-                    new base::FundamentalValue(true),
-                    NULL);
+    policy_map_.Set(
+        name, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER, POLICY_SOURCE_CLOUD,
+        base::WrapUnique(new base::FundamentalValue(true)), nullptr);
   }
 
   base::TimeDelta GetFirstDelay() const {
     if (task_runner_->GetPendingTasks().empty()) {
       ADD_FAILURE();
       return base::TimeDelta();
     }
     return task_runner_->GetPendingTasks().front().delay;
   }
 
@@ skipping 61 matching lines @@
   EXPECT_CALL(*policy_statistics_collector_.get(),
               RecordPolicyUse(kTestPolicy1Id));
   EXPECT_CALL(*policy_statistics_collector_.get(),
               RecordPolicyUse(kTestPolicy2Id));
 
   policy_statistics_collector_->Initialize();
   EXPECT_EQ(1u, task_runner_->GetPendingTasks().size());
 }
 
 }  // namespace policy