[Sync] Removing duplicate includes, part 2.

components/sync/device_info/device_info_sync_service_unittest.cc

 // 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.
 
 #include "components/sync/device_info/device_info_sync_service.h"
 
 #include <stddef.h>
-#include <stdint.h>
-
-#include <string>
 
 #include "base/message_loop/message_loop.h"
-#include "components/sync/api/sync_change.h"
-#include "components/sync/api/sync_change_processor.h"
 #include "components/sync/api/sync_change_processor_wrapper_for_test.h"
 #include "components/sync/api/sync_error_factory_mock.h"
 #include "components/sync/base/time.h"
 #include "components/sync/core/attachments/attachment_service_proxy_for_test.h"
 #include "components/sync/device_info/device_info_util.h"
 #include "components/sync/device_info/local_device_info_provider_mock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::Time;
 using base::TimeDelta;
@@ skipping 528 matching lines @@
   sync_pb::EntitySpecifics entity;
   sync_pb::DeviceInfoSpecifics& specifics = *entity.mutable_device_info();
   specifics.set_cache_guid("stale");
   StoreSyncData("stale", SyncData::CreateLocalData("stale", "stale", entity));
   EXPECT_EQ(0, CountActiveDevices(Time() + DeviceInfoUtil::kActiveThreshold));
 }
 
 }  // namespace
 
 }  // namespace syncer