[Cleanup] Move all browsertests to use ScopedFeatureList to modify features

components/safe_browsing_db/v4_feature_list.cc

 // Copyright 2016 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/safe_browsing_db/v4_feature_list.h"
+
 #include "base/feature_list.h"
-#include "components/safe_browsing_db/v4_feature_list.h"
+#include "components/safe_browsing_db/features.h"
 
 namespace safe_browsing {
 
 namespace V4FeatureList {
 
 namespace {
 
 const base::Feature kLocalDatabaseManagerEnabled{
     "SafeBrowsingV4LocalDatabaseManagerEnabled",
     base::FEATURE_DISABLED_BY_DEFAULT};
 
-const base::Feature kV4OnlyEnabled{"SafeBrowsingV4OnlyEnabled",
-                                   base::FEATURE_DISABLED_BY_DEFAULT};
-
 bool IsV4OnlyEnabled() {
-  return base::FeatureList::IsEnabled(kV4OnlyEnabled);
+  return base::FeatureList::IsEnabled(features::kV4OnlyEnabled);
 }
 
 bool IsLocalDatabaseManagerEnabled() {
   return base::FeatureList::IsEnabled(kLocalDatabaseManagerEnabled) ||
          IsV4OnlyEnabled();
 }
 
 }  // namespace
 
 V4UsageStatus GetV4UsageStatus() {
   V4UsageStatus v4_usage_status;
   if (safe_browsing::V4FeatureList::IsV4OnlyEnabled()) {
     v4_usage_status = V4UsageStatus::V4_ONLY;
   } else if (safe_browsing::V4FeatureList::IsLocalDatabaseManagerEnabled()) {
     v4_usage_status = V4UsageStatus::V4_INSTANTIATED;
   } else {
     v4_usage_status = V4UsageStatus::V4_DISABLED;
   }
   return v4_usage_status;
 }
 
 }  // namespace V4FeatureList
 
 }  // namespace safe_browsing