Sends Updated when message center is closed.

ui/message_center/message_center_impl.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/message_center/message_center_impl.h"
 
 #include "base/observer_list.h"
 #include "ui/message_center/message_center_observer.h"
 #include "ui/message_center/notification.h"
 #include "ui/message_center/notification_list.h"
@@ skipping 16 matching lines @@
 
 void MessageCenterImpl::RemoveObserver(MessageCenterObserver* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
 void MessageCenterImpl::SetDelegate(Delegate* delegate) {
   delegate_ = delegate;
 }
 
 void MessageCenterImpl::SetMessageCenterVisible(bool visible) {
-  notification_list_->SetMessageCenterVisible(visible);
+  std::set<std::string> updated_ids;
+  notification_list_->SetMessageCenterVisible(visible, &updated_ids);
+  for (std::set<std::string>::const_iterator iter = updated_ids.begin();
+       iter != updated_ids.end(); ++iter) {
+    FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
+                      OnNotificationUpdated(*iter));
+  }
 }
 
 size_t MessageCenterImpl::NotificationCount() const {
   return notification_list_->NotificationCount();
 }
 
 size_t MessageCenterImpl::UnreadNotificationCount() const {
   return notification_list_->unread_count();
 }
 
@@ skipping 179 matching lines @@
 void MessageCenterImpl::SetQuietMode(bool in_quiet_mode) {
   notification_list_->SetQuietMode(in_quiet_mode);
 }
 
 void MessageCenterImpl::EnterQuietModeWithExpire(
     const base::TimeDelta& expires_in) {
   notification_list_->EnterQuietModeWithExpire(expires_in);
 }
 
 }  // namespace message_center