😴 Skip some KeepAlive registrations on shutdown.

chrome/browser/notifications/message_center_notification_manager.cc

Index: chrome/browser/notifications/message_center_notification_manager.cc
diff --git a/chrome/browser/notifications/message_center_notification_manager.cc b/chrome/browser/notifications/message_center_notification_manager.cc
index 7b991f039890df7414e93dc747987769897d9d13..b032ec2ee8639f90e1f1edf1db2922e3d6bb84eb 100644
--- a/chrome/browser/notifications/message_center_notification_manager.cc
+++ b/chrome/browser/notifications/message_center_notification_manager.cc
@@ -145,10 +145,12 @@ bool MessageCenterNotificationManager::Update(const Notification& notification,
 
       // Add/remove notification in the local list but just update the same
       // one in MessageCenter.
-      delete old_notification;
-      profile_notifications_.erase(old_id);
       ProfileNotification* new_notification =
           new ProfileNotification(profile, notification);
+      // Delete the old one after the new one is created to ensure we don't run
+      // out of KeepAlives.
+      delete old_notification;
+      profile_notifications_.erase(old_id);
       profile_notifications_[new_notification->notification().id()] =
           new_notification;