Implement Non-Closable Notification

ui/message_center/fake_message_center.cc

Index: ui/message_center/fake_message_center.cc
diff --git a/ui/message_center/fake_message_center.cc b/ui/message_center/fake_message_center.cc
index c994088c0a3a5317113070dc5dc45344da78fdcf..f2db0dba356ee8b6ac5cf073351cdd3afd79980f 100644
--- a/ui/message_center/fake_message_center.cc
+++ b/ui/message_center/fake_message_center.cc
@@ -72,11 +72,7 @@ void FakeMessageCenter::RemoveNotification(const std::string& id,
                                            bool by_user) {
 }
 
-void FakeMessageCenter::RemoveAllNotifications(bool by_user) {
-}
-
-void FakeMessageCenter::RemoveAllVisibleNotifications(bool by_user) {
-}
+void FakeMessageCenter::RemoveAllNotifications(bool by_user, RemoveType type) {}
 
 void FakeMessageCenter::SetNotificationIcon(const std::string& notification_id,
                                             const gfx::Image& image) {