Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc

Index: chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc
diff --git a/chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc b/chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc
index d1029fa870ba0eb7ef36e18d94473f9b6fbfdf85..248af628199d7baf631b8e4a318bc5d2359b07c3 100644
--- a/chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc
+++ b/chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc
@@ -146,13 +146,13 @@ bool SyncPromoUI::ShouldShowSyncPromo(Profile* profile) {
 }
 
 // static
-void SyncPromoUI::RegisterUserPrefs(PrefService* prefs) {
-  prefs->RegisterIntegerPref(
-      prefs::kSyncPromoStartupCount, 0, PrefService::UNSYNCABLE_PREF);
-  prefs->RegisterBooleanPref(
-      prefs::kSyncPromoUserSkipped, false, PrefService::UNSYNCABLE_PREF);
+void SyncPromoUI::RegisterUserPrefs(PrefServiceSyncable* prefs) {
+  prefs->RegisterIntegerPref(prefs::kSyncPromoStartupCount, 0,
+                             PrefServiceSyncable::UNSYNCABLE_PREF);
+  prefs->RegisterBooleanPref(prefs::kSyncPromoUserSkipped, false,
+                             PrefServiceSyncable::UNSYNCABLE_PREF);
   prefs->RegisterBooleanPref(prefs::kSyncPromoShowOnFirstRunAllowed, true,
-      PrefService::UNSYNCABLE_PREF);
+                             PrefServiceSyncable::UNSYNCABLE_PREF);
 
   SyncPromoHandler::RegisterUserPrefs(prefs);
 }