Server directed error handling backend code.

chrome/browser/sync/engine/sync_error.h

+// Copyright (c) 2011 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 CHROME_BROWSER_SYNC_ENGINE_SYNC_ERROR_H_
+#define CHROME_BROWSER_SYNC_ENGINE_SYNC_ERROR_H_
+#pragma once
+
+#include <string>
+
+namespace sync_api {
+
+enum SyncErrorType {
+  SUCCESS,
+  NOT_MY_BIRTHDAY,
+  THROTTLED,
+  CLEAR_PENDING,
+  TRANSIENT_ERROR,
+  NON_RETRIABLE_ERROR,
+  MIGRATION_DONE,
+  INVALID_CREDENTIAL,
+  UNKNOWN_ERROR
+};
+
+enum ClientAction {
+  UPGRADE_CLIENT,
+  CLEAR_USER_DATA_AND_RESYNC,
+  ENABLE_SYNC_ON_ACCOUNT,
+  STOP_AND_RESTART_SYNC,
+  DISABLE_SYNC_ON_CLIENT,
+  UNKNOWN_ACTION
+};
+
+struct SyncError {
+  SyncErrorType error_type;
+  std::string error_description;
+  std::string url;
+  ClientAction action;
+  SyncError() : error_type(UNKNOWN_ERROR), action(UNKNOWN_ACTION) {}
+  ~SyncError() {}
+};
+}  // namespace sync_api
+#endif  // CHROME_BROWSER_SYNC_ENGINE_SYNC_ERROR_H_