Refactor syncable DEVICE_INFO type from ChangeProcessor to SyncableService - part 3.

chrome/browser/sync/glue/device_info_sync_service.h

Index: chrome/browser/sync/glue/device_info_sync_service.h
diff --git a/chrome/browser/sync/glue/device_info_sync_service.h b/chrome/browser/sync/glue/device_info_sync_service.h
index 3313fc42733fbf18d9d80d9ef0f845823507987d..d638e538977481174570cf7732573c233338be7d 100644
--- a/chrome/browser/sync/glue/device_info_sync_service.h
+++ b/chrome/browser/sync/glue/device_info_sync_service.h
@@ -44,9 +44,18 @@ class DeviceInfoSyncService : public syncer::SyncableService,
   virtual void AddObserver(Observer* observer) OVERRIDE;
   virtual void RemoveObserver(Observer* observer) OVERRIDE;
 
+  // Called to update local device backup time.
+  void UpdateLocalDeviceBackupTime(base::Time backup_time);
+  // Gets the most recently set local device backup time.
+  base::Time GetLocalDeviceBackupTime() const;
+
  private:
-  // Create SyncData from local DeviceInfo.
-  static syncer::SyncData CreateLocalData(const DeviceInfo* info);
+  // Create SyncData from local DeviceInfo and |local_device_backup_time_|.
+  syncer::SyncData CreateLocalData(const DeviceInfo* info);
+  // Create SyncData from EntitySpecifics.
+  static syncer::SyncData CreateLocalData(
+      const sync_pb::EntitySpecifics& entity);
+
   // Allocate new DeviceInfo from SyncData.
   static DeviceInfo* CreateDeviceInfo(const syncer::SyncData sync_data);
   // Store SyncData in the cache.
@@ -57,6 +66,25 @@ class DeviceInfoSyncService : public syncer::SyncableService,
   // Notify all registered observers.
   void NotifyObservers();
 
+  // Updates backup time in place in |sync_data| if it is different than
+  // the one stored in |local_device_backup_time_|.
+  // Returns true if backup time was updated.
+  bool UpdateBackupTime(syncer::SyncData* sync_data);
+
+  // |local_device_backup_time_| accessors.
+  int64 local_device_backup_time() const { return local_device_backup_time_; }
+  bool has_local_device_backup_time() const {
+    return local_device_backup_time_ >= 0;
+  }
+  void set_local_device_backup_time(int64 value) {
+    local_device_backup_time_ = value;
+  }
+  void clear_local_device_backup_time() { local_device_backup_time_ = -1; }
+
+  // Local device last set backup time (in proto format).
+  // -1 if the value hasn't been specified
+  int64 local_device_backup_time_;
+
   // |local_device_info_provider_| isn't owned.
   const LocalDeviceInfoProvider* const local_device_info_provider_;