[Sync] Rename csync namespace to syncer

sync/internal_api/public/engine/model_safe_worker.h

 // 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_INTERNAL_API_PUBLIC_ENGINE_MODEL_SAFE_WORKER_H_
 #define SYNC_INTERNAL_API_PUBLIC_ENGINE_MODEL_SAFE_WORKER_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "sync/internal_api/public/syncable/model_type.h"
 #include "sync/internal_api/public/util/syncer_error.h"
 
 namespace base {
 class DictionaryValue;
 }  // namespace
 
-namespace csync {
+namespace syncer {
 
 typedef base::Callback<enum SyncerError(void)> WorkCallback;
 
 enum ModelSafeGroup {
   GROUP_PASSIVE = 0,   // Models that are just "passively" being synced; e.g.
                        // changes to these models don't need to be pushed to a
                        // native model.
   GROUP_UI,            // Models that live on UI thread and are being synced.
   GROUP_DB,            // Models that live on DB thread and are being synced.
   GROUP_FILE,          // Models that live on FILE thread and are being synced.
@@ skipping 42 matching lines @@
 
 std::string ModelSafeRoutingInfoToString(
     const ModelSafeRoutingInfo& routing_info);
 
 syncable::ModelTypeSet GetRoutingInfoTypes(
     const ModelSafeRoutingInfo& routing_info);
 
 ModelSafeGroup GetGroupForModelType(const syncable::ModelType type,
                                     const ModelSafeRoutingInfo& routes);
 
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_ENGINE_MODEL_SAFE_WORKER_H_