|  | // Copyright (c) 2012 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 SYNC_ENGINE_NUDGE_SOURCE_H_ | 
|  | #define SYNC_ENGINE_NUDGE_SOURCE_H_ | 
|  |  | 
|  | namespace syncer { | 
|  |  | 
|  | enum NudgeSource { | 
|  | NUDGE_SOURCE_UNKNOWN = 0, | 
|  | // We received an invalidation message and are nudging to check for updates. | 
|  | NUDGE_SOURCE_NOTIFICATION, | 
|  | // A local change occurred (e.g. bookmark moved). | 
|  | NUDGE_SOURCE_LOCAL, | 
|  | // A local event is triggering an optimistic datatype refresh. | 
|  | NUDGE_SOURCE_LOCAL_REFRESH, | 
|  | }; | 
|  |  | 
|  | const char* GetNudgeSourceString(NudgeSource nudge_source); | 
|  |  | 
|  | }  // namespace syncer | 
|  |  | 
|  | #endif  // SYNC_ENGINE_NUDGE_SOURCE_H_ |