Move TestingPrefService to use unique_ptr<Value>

chrome/browser/search_engines/template_url_service_unittest.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 "components/search_engines/template_url_service.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 312 matching lines @@
   entry->SetString("suggest_url",
                    "http://override.com/suggest?q={searchTerms}");
   entry->SetString("instant_url",
                    "http://override.com/instant?q={searchTerms}");
 
   auto overrides_list = base::MakeUnique<base::ListValue>();
   overrides_list->Append(std::move(entry));
 
   auto* prefs = test_util()->profile()->GetTestingPrefService();
   prefs->SetUserPref(prefs::kSearchProviderOverridesVersion,
-                     new base::Value(1));
-  prefs->SetUserPref(prefs::kSearchProviderOverrides, overrides_list.release());
+                     base::MakeUnique<base::Value>(1));
+  prefs->SetUserPref(prefs::kSearchProviderOverrides,
+                     std::move(overrides_list));
 }
 
 void TemplateURLServiceTest::VerifyObserverCount(int expected_changed_count) {
   EXPECT_EQ(expected_changed_count, test_util_->GetObserverCount());
   test_util_->ResetObserverCount();
 }
 
 void TemplateURLServiceTest::VerifyObserverFired() {
   EXPECT_LE(1, test_util_->GetObserverCount());
   test_util_->ResetObserverCount();
@@ skipping 1591 matching lines @@
   TemplateURL* update_url =
       model()->GetTemplateURLForKeyword(ASCIIToUTF16("engine_keyword"));
   const Time update_last_modified = update_url->last_modified();
   model()->SetUserSelectedDefaultSearchProvider(update_url);
   TemplateURL* reloaded_url =
       model()->GetTemplateURLForKeyword(ASCIIToUTF16("engine_keyword"));
   const Time reloaded_last_modified = reloaded_url->last_modified();
   EXPECT_NE(original_last_modified, reloaded_last_modified);
   EXPECT_EQ(update_last_modified, reloaded_last_modified);
 }