mash: switch to the new pref service

chrome/browser/profiles/profile_impl.cc

Index: chrome/browser/profiles/profile_impl.cc
diff --git a/chrome/browser/profiles/profile_impl.cc b/chrome/browser/profiles/profile_impl.cc
index 8cf0d1b3e925b3959278ab4cf7185264b9a30f5a..403a2cd4e49886ccf84cb8ab4bf1e07a98a49c31 100644
--- a/chrome/browser/profiles/profile_impl.cc
+++ b/chrome/browser/profiles/profile_impl.cc
@@ -496,7 +496,7 @@ ProfileImpl::ProfileImpl(
 
   {
     service_manager::Connector* connector = nullptr;
-    if (base::FeatureList::IsEnabled(features::kPrefService)) {
+    if (features::PrefServiceEnabled()) {
       connector = content::BrowserContext::GetConnectorFor(this);
     }
     prefs_ = chrome_prefs::CreateProfilePrefs(
@@ -1068,7 +1068,7 @@ ProfileImpl::CreateMediaRequestContextForStoragePartition(
 }
 
 void ProfileImpl::RegisterInProcessServices(StaticServiceMap* services) {
-  if (base::FeatureList::IsEnabled(features::kPrefService)) {
+  if (features::PrefServiceEnabled()) {
     content::ServiceInfo info;
     info.factory = base::Bind(
         &prefs::CreatePrefService, std::set<PrefValueStore::PrefStoreType>(),