Have a central operation status code for ServiceWorker

content/common/service_worker/service_worker_status_code.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_COMMON_SERVICE_WORKER_SERVICE_WORKER_STATUS_CODE_H_
+#define CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_STATUS_CODE_H_
+
+#include "content/common/content_export.h"
+
+namespace content {
+
+// Generic service worker operation statuses.
+enum ServiceWorkerStatusCode {
+  // Operation succeeded.
+  SERVICE_WORKER_OK,
+
+  // Generic operation error (more specific error code should be used in
+  // general).
+  SERVICE_WORKER_ERROR_FAILED,
+
+  // Operation was aborted (e.g. due to context or child process shutdown).
+  SERVICE_WORKER_ERROR_ABORT,
+
+  // Starting a new service worker script context failed.
+  SERVICE_WORKER_ERROR_START_WORKER_FAILED,
+
+  // Could not find a renderer process to run a service worker.
+  SERVICE_WORKER_ERROR_PROCESS_NOT_FOUND,
+
+  // Install event handling failed.
+  SERVICE_WORKER_ERROR_INSTALL_WORKER_FAILED,
+
+  // Activate event handling failed.
+  SERVICE_WORKER_ERROR_ACTIVATE_WORKER_FAILED,
+};
+
+CONTENT_EXPORT const char* ServiceWorkerStatusToString(
+    ServiceWorkerStatusCode code);
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_STATUS_CODE_H_