Revert of [Sync] Move //components/sync to the syncer namespace. (patchset #5 id:40001 of https://co

chrome/browser/extensions/api/signed_in_devices/id_mapping_helper.h

 // Copyright (c) 2013 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 CHROME_BROWSER_EXTENSIONS_API_SIGNED_IN_DEVICES_ID_MAPPING_HELPER_H__
 #define CHROME_BROWSER_EXTENSIONS_API_SIGNED_IN_DEVICES_ID_MAPPING_HELPER_H__
 
 #include <memory>
 #include <string>
 #include <vector>
 
 
 namespace base {
 class DictionaryValue;
 }  // namespace base
 
-namespace syncer {
+namespace sync_driver {
 class DeviceInfo;
-}  // namespace syncer
+}  // namespace sync_driver
 
 class Profile;
 
 namespace extensions {
 
 // In order to not expose unique GUIDs for devices to third pary apps,
 // the unique GUIDs are mapped to local ids and local ids are exposed to apps.
 // The functions in this file are helper routines to do the mapping.
 
 // Gets public id from GUID, given a dictionary that has the mapping.
 // If it cannot find the GUID the public id returned will be empty.
 std::string GetPublicIdFromGUID(
     const base::DictionaryValue& id_mapping,
     const std::string& guid);
 
 // Gets the GUID from public id given a dictionary that has the mapping.
 // If it cannot find the public id, the GUID returned will be empty.
 std::string GetGUIDFromPublicId(
     const base::DictionaryValue& id_mapping,
     const std::string& id);
 
 // Creates public id for devices that don't have a public id. To create mappings
 // from scratch an empty dictionary must be passed. The dictionary will be
 // updated with the mappings. The |device_info| objects will also be updated
 // with the public ids.
 // The dictionary would have the public id as the key and the
 // device guid as the value.
 void CreateMappingForUnmappedDevices(
-    const std::vector<std::unique_ptr<syncer::DeviceInfo>>& device_info,
+    const std::vector<std::unique_ptr<sync_driver::DeviceInfo>>& device_info,
     base::DictionaryValue* value);
 
 // Gets the device info for a given client id. If the device is not found
 // the returned pointer would be null.
-std::unique_ptr<syncer::DeviceInfo> GetDeviceInfoForClientId(
+std::unique_ptr<sync_driver::DeviceInfo> GetDeviceInfoForClientId(
     const std::string& client_id,
     const std::string& extension_id,
     Profile* profile);
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SIGNED_IN_DEVICES_ID_MAPPING_HELPER_H__