Migrate more tests to ScopedFeatureList.

chrome/browser/android/offline_pages/offline_page_utils_unittest.cc

 // Copyright 2015 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/android/offline_pages/offline_page_utils.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/callback.h"
 #include "base/command_line.h"
-#include "base/feature_list.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/run_loop.h"
 #include "base/strings/string16.h"
+#include "base/test/scoped_feature_list.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/android/offline_pages/offline_page_model_factory.h"
 #include "chrome/browser/android/offline_pages/test_offline_page_model_builder.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/offline_pages/client_namespace_constants.h"
 #include "components/offline_pages/offline_page_feature.h"
 #include "components/offline_pages/offline_page_model.h"
 #include "components/offline_pages/offline_page_test_archiver.h"
 #include "components/offline_pages/offline_page_test_store.h"
@@ skipping 49 matching lines @@
  private:
   void CreateOfflinePages();
   std::unique_ptr<OfflinePageTestArchiver> BuildArchiver(
       const GURL& url,
       const base::FilePath& file_name);
 
   content::TestBrowserThreadBundle browser_thread_bundle_;
   int64_t offline_id_;
   GURL url_;
   TestingProfile profile_;
+  base::test::ScopedFeatureList scoped_feature_list_;
 };
 
 OfflinePageUtilsTest::OfflinePageUtilsTest() = default;
 
 OfflinePageUtilsTest::~OfflinePageUtilsTest() {}
 
 void OfflinePageUtilsTest::SetUp() {
   // Enables offline pages feature.
   // TODO(jianli): Remove this once the feature is completely enabled.
-  base::FeatureList::ClearInstanceForTesting();
-  std::unique_ptr<base::FeatureList> feature_list(new base::FeatureList);
-  feature_list->InitializeFromCommandLine(
-      offline_pages::kOfflineBookmarksFeature.name, "");
-  base::FeatureList::SetInstance(std::move(feature_list));
+  scoped_feature_list_.InitAndEnableFeature(
+      offline_pages::kOfflineBookmarksFeature);
 
   // Set up the factory for testing.
   OfflinePageModelFactory::GetInstance()->SetTestingFactoryAndUse(
       &profile_, BuildTestOfflinePageModel);
   RunUntilIdle();
 
   // Make sure the store contains the right offline pages before the load
   // happens.
   CreateOfflinePages();
 }
@@ skipping 80 matching lines @@
   EXPECT_TRUE(page_exists);
   // This one should be missing
   OfflinePageUtils::CheckExistenceOfPagesWithURL(
       profile(), kDownloadNamespace, kTestPage3Url,
       base::Bind(&BoolCallback, base::Unretained(&page_exists)));
   RunUntilIdle();
   EXPECT_FALSE(page_exists);
 }
 
 }  // namespace offline_pages