[Sync] USS: Add EntityChange.

components/sync_driver/device_info_service.h

 // Copyright 2015 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_DEVICE_INFO_SERVICE_H_
 #define COMPONENTS_SYNC_DRIVER_DEVICE_INFO_SERVICE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 29 matching lines @@
       sync_driver::LocalDeviceInfoProvider* local_device_info_provider);
   ~DeviceInfoService() override;
 
   // ModelTypeService implementation.
   syncer_v2::MetadataChanges* CreateMetadataChanges() override;
   syncer::SyncError MergeSyncData(
       syncer_v2::MetadataChanges* metadata_changes,
       syncer_v2::EntityDataList entity_data_list) override;
   syncer::SyncError ApplySyncChanges(
       syncer_v2::MetadataChanges* metadata_changes,
-      syncer_v2::EntityDataList entity_data_list) override;
+      syncer_v2::EntityChangeList entity_changes) override;
   void LoadMetadata(MetadataCallback callback) override;
   void GetData(ClientKeyList client_keys, DataCallback callback) override;
   void GetAllData(DataCallback callback) override;
   std::string GetClientTag(const syncer_v2::EntityData* entity_data) override;
 
   // DeviceInfoTracker implementation.
   bool IsSyncing() const override;
   scoped_ptr<sync_driver::DeviceInfo> GetDeviceInfo(
       const std::string& client_id) const override;
   ScopedVector<sync_driver::DeviceInfo> GetAllDeviceInfo() const override;
@@ skipping 55 matching lines @@
   base::ObserverList<Observer, true> observers_;
 
   scoped_ptr<sync_driver::LocalDeviceInfoProvider::Subscription> subscription_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceInfoService);
 };
 
 }  // namespace sync_driver_v2
 
 #endif  // COMPONENTS_SYNC_DRIVER_DEVICE_INFO_SERVICE_H_