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.cc

 // 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.
 
 #include "chrome/browser/extensions/api/signed_in_devices/id_mapping_helper.h"
 
 #include <memory>
 
 #include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/signed_in_devices/signed_in_devices_api.h"
 #include "chrome/browser/profiles/profile.h"
 #include "components/crx_file/id_util.h"
 #include "components/sync/device_info/device_info.h"
 
 using base::DictionaryValue;
 using base::Value;
-using syncer::DeviceInfo;
+using sync_driver::DeviceInfo;
 
 namespace extensions {
 
 std::string GetPublicIdFromGUID(
     const base::DictionaryValue& id_mapping,
     const std::string& guid) {
   for (base::DictionaryValue::Iterator it(id_mapping);
        !it.IsAtEnd();
        it.Advance()) {
     const base::Value& value = it.value();
@@ skipping 64 matching lines @@
   for (auto& iter : devices) {
     if (iter->guid() == client_id) {
       std::unique_ptr<DeviceInfo> device = std::move(iter);
       return device;
     }
   }
   return std::unique_ptr<DeviceInfo>();
 }
 
 }  // namespace  extensions