Remove PrefServiceSimple, replacing it with PrefService and PrefRegistrySimple.

chrome/browser/chromeos/status/data_promo_notification.h

Index: chrome/browser/chromeos/status/data_promo_notification.h
diff --git a/chrome/browser/chromeos/status/data_promo_notification.h b/chrome/browser/chromeos/status/data_promo_notification.h
index e1a03a30eb861a2b5bc37891d6c1e6f88236a5b1..bbf3a4d7ea1a4ae8c4f35bb6e06713e9a690d55e 100644
--- a/chrome/browser/chromeos/status/data_promo_notification.h
+++ b/chrome/browser/chromeos/status/data_promo_notification.h
@@ -8,7 +8,7 @@
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 
-class PrefServiceSimple;
+class PrefRegistrySimple;
 
 namespace ash {
 class NetworkTrayDelegate;
@@ -26,7 +26,7 @@ class DataPromoNotification {
   DataPromoNotification();
   virtual ~DataPromoNotification();
 
-  static void RegisterPrefs(PrefServiceSimple* local_state);
+  static void RegisterPrefs(PrefRegistrySimple* local_state);
 
   const std::string& deal_info_url() const { return deal_info_url_; }
   const std::string& deal_topup_url() const { return deal_topup_url_; }