The 1st patch to disambiguate message center notifications

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 45bf1b0c8e4502575fa2cf623debd0c599eff643..946b2c75ba90ea2e1257eece389c6ae49da44c30 100644
--- a/ui/message_center/fake_message_center.cc
+++ b/ui/message_center/fake_message_center.cc
@@ -38,10 +38,6 @@ bool FakeMessageCenter::HasPopupNotifications() const {
   return false;
 }
 
-bool FakeMessageCenter::HasNotification(const std::string& id) {
-  return false;
-}
-
 bool FakeMessageCenter::IsQuietMode() const {
   return false;
 }
@@ -50,6 +46,11 @@ bool FakeMessageCenter::HasClickedListener(const std::string& id) {
   return false;
 }
 
+message_center::Notification* FakeMessageCenter::FindVisibleNotificationById(
+    const std::string& id) {
+  return NULL;
+}
+
 const NotificationList::Notifications&
 FakeMessageCenter::GetVisibleNotifications() {
   return empty_notifications_;