[Sync] Rename csync namespace to syncer

sync/util/nigori.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_UTIL_NIGORI_H_
 #define SYNC_UTIL_NIGORI_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 
 namespace crypto {
 class SymmetricKey;
 }  // namespace crypto
 
-namespace csync {
+namespace syncer {
 
 // A (partial) implementation of Nigori, a protocol to securely store secrets in
 // the cloud. This implementation does not support server authentication or
 // assisted key derivation.
 //
 // To store secrets securely, use the |Permute| method to derive a lookup name
 // for your secret (basically a map key), and |Encrypt| and |Decrypt| to store
 // and retrieve the secret.
 //
 // TODO: Link to doc.
@@ skipping 46 matching lines @@
   static const size_t kUserIterations = 1002;
   static const size_t kEncryptionIterations = 1003;
   static const size_t kSigningIterations = 1004;
 
  private:
   scoped_ptr<crypto::SymmetricKey> user_key_;
   scoped_ptr<crypto::SymmetricKey> encryption_key_;
   scoped_ptr<crypto::SymmetricKey> mac_key_;
 };
 
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_UTIL_NIGORI_H_