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

chrome/browser/chromeos/policy/variations_service_policy_browsertest.cc

 // Copyright (c) 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 <memory>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 32 matching lines @@
 };
 
 IN_PROC_BROWSER_TEST_F(VariationsServiceDevicePolicyTest, VariationsURLValid) {
   const std::string default_variations_url =
       variations::VariationsService::GetDefaultVariationsServerURLForTesting();
 
   // g_browser_process->variations_service() is null by default in Chromium
   // builds, so construct a VariationsService locally instead.
   std::unique_ptr<variations::VariationsService> service =
       variations::VariationsService::CreateForTesting(
-          base::WrapUnique(new ChromeVariationsServiceClient()),
+          base::MakeUnique<ChromeVariationsServiceClient>(),
           g_browser_process->local_state());
 
   // Device policy has updated the cros settings.
   const GURL url = service->GetVariationsServerURL(
       g_browser_process->local_state(), std::string());
   EXPECT_TRUE(base::StartsWith(url.spec(), default_variations_url,
                                base::CompareCase::SENSITIVE));
   std::string value;
   EXPECT_TRUE(net::GetValueForKeyInQuery(url, "restrict", &value));
   EXPECT_EQ("restricted", value);
 }
 
 }  // namespace policy