Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

content/child/notifications/notification_manager.cc

Index: content/child/notifications/notification_manager.cc
diff --git a/content/child/notifications/notification_manager.cc b/content/child/notifications/notification_manager.cc
index bb9ab7a9d2ef62a19ff0cc0e6a7f070f6a0226b6..e3b867e35ba4f57d0de6f8e281d1cd9af4ae3897 100644
--- a/content/child/notifications/notification_manager.cc
+++ b/content/child/notifications/notification_manager.cc
@@ -147,7 +147,7 @@ void NotificationManager::showPersistent(
   int request_id =
       notification_dispatcher_->GenerateNotificationId(CurrentWorkerId());
 
-  pending_show_notification_requests_.AddWithID(owned_callbacks.release(),
+  pending_show_notification_requests_.AddWithID(std::move(owned_callbacks),
                                                 request_id);
 
   // TODO(mkwst): This is potentially doing the wrong thing with unique
@@ -179,7 +179,9 @@ void NotificationManager::getNotifications(
   int request_id =
       notification_dispatcher_->GenerateNotificationId(CurrentWorkerId());
 
-  pending_get_notification_requests_.AddWithID(callbacks, request_id);
+  pending_get_notification_requests_.AddWithID(
+      std::unique_ptr<blink::WebNotificationGetCallbacks>(callbacks),
+      request_id);
 
   thread_safe_sender_->Send(new PlatformNotificationHostMsg_GetNotifications(
       request_id, service_worker_registration_id, origin,