[Sync] Rename csync namespace to syncer

sync/api/sync_data.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_API_SYNC_DATA_H_
 #define SYNC_API_SYNC_DATA_H_
 #pragma once
 
 #include <iosfwd>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "sync/internal_api/public/syncable/model_type.h"
 #include "sync/internal_api/public/util/immutable.h"
 
 namespace sync_pb {
 class EntitySpecifics;
 class SyncEntity;
 }  // namespace sync_pb
 
-namespace csync {
+namespace syncer {
 
 typedef syncable::ModelType SyncDataType;
 
 // A light-weight container for immutable sync data. Pass-by-value and storage
 // in STL containers are supported and encouraged if helpful.
 class SyncData {
  public:
   // Creates an empty and invalid SyncData.
   SyncData();
    ~SyncData();
@@ skipping 60 matching lines @@
 
     static void DestroyWrapper(Wrapper* wrapper);
 
     static const sync_pb::SyncEntity& Unwrap(const Wrapper& wrapper);
 
     static sync_pb::SyncEntity* UnwrapMutable(Wrapper* wrapper);
 
     static void Swap(sync_pb::SyncEntity* t1, sync_pb::SyncEntity* t2);
   };
 
-  typedef csync::Immutable<
+  typedef syncer::Immutable<
     sync_pb::SyncEntity, ImmutableSyncEntityTraits>
       ImmutableSyncEntity;
 
   // Clears |entity|.
   SyncData(int64 id, sync_pb::SyncEntity* entity);
 
   // Whether this SyncData holds valid data.
   bool is_valid_;
 
-  // Equal to csync::kInvalidId iff this is local.
+  // Equal to syncer::kInvalidId iff this is local.
   int64 id_;
 
   // The actual shared sync entity being held.
   ImmutableSyncEntity immutable_entity_;
 };
 
 // gmock printer helper.
 void PrintTo(const SyncData& sync_data, std::ostream* os);
 
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_API_SYNC_DATA_H_