Re-write many calls to WrapUnique() with MakeUnique()

chrome/browser/ui/webui/options/preferences_browsertest.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 "chrome/browser/ui/webui/options/preferences_browsertest.h"
 
 #include <stddef.h>
 
 #include <iostream>
 #include <memory>
@@ skipping 865 matching lines @@
         "        \"PAC\": \"http://domain.com/x\","
         "        \"Type\": \"PAC\" }"
         "    }"
         "  ],"
         "  \"Type\": \"UnencryptedConfiguration\""
         "}";
 
     policy::PolicyMap map;
     map.Set(policy_name, policy::POLICY_LEVEL_MANDATORY, scope,
             policy::POLICY_SOURCE_CLOUD,
-            base::WrapUnique(new base::StringValue(onc_policy)), nullptr);
+            base::MakeUnique<base::StringValue>(onc_policy), nullptr);
     policy_provider_.UpdateChromePolicy(map);
 
     content::RunAllPendingInMessageLoop();
   }
 
   const chromeos::NetworkState* GetDefaultNetwork() {
     chromeos::NetworkStateHandler* handler =
         chromeos::NetworkHandler::Get()->network_state_handler();
     return handler->DefaultNetwork();
   }
@@ skipping 183 matching lines @@
   SetProxyPref(chromeos::kProxyHttpsPort, base::FundamentalValue(2));
   SetProxyPref(chromeos::kProxyFtpPort, base::FundamentalValue(3));
   SetProxyPref(chromeos::kProxySocksPort, base::FundamentalValue(4));
 
   VerifyCurrentProxyServer(
       "http=a.com:1;https=4.3.2.1:2;ftp=c.com:3;socks=socks4://d.com:4",
       onc::ONC_SOURCE_NONE);
 }
 
 #endif