Convert FieldTrialList to Accept a std::unique_ptr

chrome/browser/search/search_unittest.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 <stddef.h>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/field_trial.h"
@@ skipping 32 matching lines @@
 #include "chrome/browser/supervised_user/supervised_user_url_filter.h"
 #endif
 
 namespace search {
 
 class SearchTest : public BrowserWithTestWindowTest {
  protected:
   void SetUp() override {
     BrowserWithTestWindowTest::SetUp();
     field_trial_list_.reset(new base::FieldTrialList(
-        new metrics::SHA1EntropyProvider("42")));
+        base::MakeUnique<metrics::SHA1EntropyProvider>("42")));
     TemplateURLServiceFactory::GetInstance()->SetTestingFactoryAndUse(
         profile(), &TemplateURLServiceFactory::BuildInstanceFor);
     TemplateURLService* template_url_service =
         TemplateURLServiceFactory::GetForProfile(profile());
     search_test_utils::WaitForTemplateURLServiceToLoad(template_url_service);
     SetSearchProvider(true, false);
   }
 
   virtual void SetSearchProvider(bool set_ntp_url, bool insecure_ntp_url) {
     TemplateURLService* template_url_service =
@@ skipping 603 matching lines @@
   TemplateURLRef::SearchTermsArgs search_terms_args(base::ASCIIToUTF16("foo"));
   GURL result(template_url_->url_ref().ReplaceSearchTerms(
       search_terms_args, UIThreadSearchTermsData(profile())));
   ASSERT_TRUE(result.is_valid());
   // Query extraction is disabled. Make sure
   // {google:instantExtendedEnabledParameter} is not set in the search URL.
   EXPECT_EQ("http://www.google.com/search?q=foo", result.spec());
 }
 
 }  // namespace search