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

chrome/browser/chromeos/policy/configuration_policy_handler_chromeos.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/chromeos/policy/configuration_policy_handler_chromeos.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
@@ skipping 288 matching lines @@
   // Placeholder to insert in place of the filtered setting.
   const char kPlaceholder[] = "********";
 
   toplevel_dict = chromeos::onc::MaskCredentialsInOncObject(
       chromeos::onc::kToplevelConfigurationSignature,
       *toplevel_dict,
       kPlaceholder);
 
   base::JSONWriter::WriteWithOptions(
       *toplevel_dict, base::JSONWriter::OPTIONS_PRETTY_PRINT, &json_string);
-  return base::WrapUnique(new base::StringValue(json_string));
+  return base::MakeUnique<base::StringValue>(json_string);
 }
 
 PinnedLauncherAppsPolicyHandler::PinnedLauncherAppsPolicyHandler()
     : ExtensionListPolicyHandler(key::kPinnedLauncherApps,
                                  prefs::kPolicyPinnedLauncherApps,
                                  false) {}
 
 PinnedLauncherAppsPolicyHandler::~PinnedLauncherAppsPolicyHandler() {}
 
 void PinnedLauncherAppsPolicyHandler::ApplyPolicySettings(
@@ skipping 159 matching lines @@
 
   value = GetValue(dict, kScreenLockDelayAC);
   if (value)
     prefs->SetValue(prefs::kPowerAcScreenLockDelayMs, std::move(value));
   value = GetValue(dict, kScreenLockDelayBattery);
   if (value)
     prefs->SetValue(prefs::kPowerBatteryScreenLockDelayMs, std::move(value));
 }
 
 }  // namespace policy