[Sync] Move //components/sync to the syncer namespace.

components/sync/driver/system_encryptor.h

 // Copyright 2014 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 COMPONENTS_SYNC_DRIVER_SYSTEM_ENCRYPTOR_H_
 #define COMPONENTS_SYNC_DRIVER_SYSTEM_ENCRYPTOR_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "components/sync/base/encryptor.h"
 
-namespace sync_driver {
+namespace syncer {
 
 // Encryptor that uses the Chrome password manager's encryptor.
-class SystemEncryptor : public syncer::Encryptor {
+class SystemEncryptor : public Encryptor {
  public:
   ~SystemEncryptor() override;
 
   bool EncryptString(const std::string& plaintext,
                      std::string* ciphertext) override;
 
   bool DecryptString(const std::string& ciphertext,
                      std::string* plaintext) override;
 };
 
-}  // namespace sync_driver
+}  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_DRIVER_SYSTEM_ENCRYPTOR_H_