Pass Notification into NotificationBlocker ShouldShow* methods

ash/first_run/desktop_cleaner.cc

Index: ash/first_run/desktop_cleaner.cc
diff --git a/ash/first_run/desktop_cleaner.cc b/ash/first_run/desktop_cleaner.cc
index 42b92a3ef7a9758f43d5210c0d081b7e90d0aa0b..9c650bc2ca69fcbbe9aa8368ffaa0b3420e36ebe 100644
--- a/ash/first_run/desktop_cleaner.cc
+++ b/ash/first_run/desktop_cleaner.cc
@@ -82,7 +82,7 @@ class NotificationBlocker : public message_center::NotificationBlocker {
  private:
   // Overriden from message_center::NotificationBlocker.
   bool ShouldShowNotificationAsPopup(
-      const message_center::NotifierId& notifier_id) const override {
+      const message_center::Notification& notification) const override {
     return false;
   }