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

chrome/browser/extensions/api/certificate_provider/certificate_provider_apitest.cc

 // Copyright 2015 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 <openssl/evp.h>
 #include <openssl/rsa.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
 
@@ skipping 128 matching lines @@
     // certificate selection dialog.
     const std::string autoselect_pattern =
         "{\"pattern\": \"*\", \"filter\": {\"ISSUER\": {\"CN\": \"root\"}}}";
 
     std::unique_ptr<base::ListValue> autoselect_policy(new base::ListValue);
     autoselect_policy->AppendString(autoselect_pattern);
 
     policy::PolicyMap policy;
     policy.Set(policy::key::kAutoSelectCertificateForUrls,
                policy::POLICY_LEVEL_MANDATORY, policy::POLICY_SCOPE_USER,
-               policy::POLICY_SOURCE_CLOUD, autoselect_policy.release(),
+               policy::POLICY_SOURCE_CLOUD, std::move(autoselect_policy),
                nullptr);
     provider_.UpdateChromePolicy(policy);
 
     content::RunAllPendingInMessageLoop();
   }
 
  protected:
   policy::MockConfigurationPolicyProvider provider_;
 };
 
@@ skipping 100 matching lines @@
     base::RunLoop run_loop;
     const std::string code = "replyWithSignatureSecondTime();";
     bool result = false;
     extension_contents->GetMainFrame()->ExecuteJavaScriptForTests(
         base::ASCIIToUTF16(code),
         base::Bind(&StoreBool, &result, run_loop.QuitClosure()));
     run_loop.Run();
     EXPECT_TRUE(result);
   }
 }