[Sync] Rename csync namespace to syncer

sync/engine/download_updates_command.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_ENGINE_DOWNLOAD_UPDATES_COMMAND_H_
 #define SYNC_ENGINE_DOWNLOAD_UPDATES_COMMAND_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "sync/engine/syncer_command.h"
 #include "sync/internal_api/public/engine/model_safe_worker.h"
 #include "sync/internal_api/public/syncable/model_type.h"
 #include "sync/protocol/sync.pb.h"
 
 namespace sync_pb {
 class EntitySpecifics;
 }
 
-namespace csync {
+namespace syncer {
 
 // Determine the enabled datatypes, download a batch of updates for them
 // from the server, place the result in the SyncSession for further processing.
 //
 // The main inputs to this operation are the download_progress state
 // in the syncable::Directory, and the set of enabled types as indicated by
 // the SyncSession. DownloadUpdatesCommand will fetch updates for
 // all the enabled types, using download_progress to indicate the starting
 // point to the server. DownloadUpdatesCommand stores the server response
 // in the SyncSession. Only one server request is performed per Execute
@@ skipping 20 matching lines @@
  private:
   FRIEND_TEST_ALL_PREFIXES(DownloadUpdatesCommandTest, VerifyAppendDebugInfo);
   void AppendClientDebugInfoIfNeeded(sessions::SyncSession* session,
       sync_pb::DebugInfo* debug_info);
 
   const bool create_mobile_bookmarks_folder_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadUpdatesCommand);
 };
 
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_ENGINE_DOWNLOAD_UPDATES_COMMAND_H_