Refine error code returned by ServiceWorkerVersion::StartWorker (e.g. PROCESS_NOT_FOUND etc)

content/browser/service_worker/service_worker_registration_status.cc

 // Copyright 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 "content/browser/service_worker/service_worker_registration_status.h"
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 
 namespace content {
@@ skipping 14 matching lines @@
     case SERVICE_WORKER_ERROR_START_WORKER_FAILED:
     case SERVICE_WORKER_ERROR_INSTALL_WORKER_FAILED:
       *error_type = WebServiceWorkerError::InstallError;
       return;
 
     case SERVICE_WORKER_ERROR_ACTIVATE_WORKER_FAILED:
       *error_type = WebServiceWorkerError::ActivateError;
       return;
 
     case SERVICE_WORKER_ERROR_ABORT:
+    case SERVICE_WORKER_ERROR_IPC_FAILED:
     case SERVICE_WORKER_ERROR_FAILED:
     case SERVICE_WORKER_ERROR_PROCESS_NOT_FOUND:
       // Unexpected, or should bail out before calling this, or we don't
       // have a corresponding blink error code yet.
       break;  // Fall through to NOTREACHED().
   }
   NOTREACHED() << "Got unexpected error code: "
                << status << " " << ServiceWorkerStatusToString(status);
 }
 
 }  // namespace content