Dispatch push event to worker from PushServiceImpl#OnMessage.

content/public/common/push_messaging_status.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_PUBLIC_COMMON_PUSH_MESSAGING_STATUS_STATUS_H_
 #define CONTENT_PUBLIC_COMMON_PUSH_MESSAGING_STATUS_STATUS_H_
 
 namespace content {
 
 enum PushMessagingStatus {
   // Everything is ok.
   PUSH_MESSAGING_STATUS_OK,
 
   // Registration failed because there is no Service Worker.
   PUSH_MESSAGING_STATUS_REGISTRATION_FAILED_NO_SERVICE_WORKER,
 
   // Registration failed because the push service is not available.
   PUSH_MESSAGING_STATUS_REGISTRATION_FAILED_SERVICE_NOT_AVAILABLE,
 
   // Registration failed because the maximum number of registratons has been
   // reached.
   PUSH_MESSAGING_STATUS_REGISTRATION_FAILED_LIMIT_REACHED,
 
   // Registration failed because permission was denied.
   PUSH_MESSAGING_STATUS_REGISTRATION_FAILED_PERMISSION_DENIED,
 
   // Registration failed in the push service implemented by the embedder.
   PUSH_MESSAGING_STATUS_REGISTRATION_FAILED_SERVICE_ERROR,
 
+  // The message could not be delivered because no service worker was found.
+  PUSH_MESSAGING_STATUS_MESSAGE_DELIVERY_FAILED_NO_SERVICE_WORKER,
+
+  // The message could not be delivered because of a service worker error.
+  PUSH_MESSAGING_STATUS_MESSAGE_DELIVERY_FAILED_SERVICE_WORKER_ERROR,
+
   // Generic error (a more specific error should be used whenever possible).
   PUSH_MESSAGING_STATUS_ERROR,
 
   // Used for IPC message range checks.
   PUSH_MESSAGING_STATUS_LAST = PUSH_MESSAGING_STATUS_ERROR
 };
 
 const char* PushMessagingStatusToString(PushMessagingStatus status);
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_PUSH_MESSAGING_STATUS_STATUS_H_