[Sync] SyncEngine refactor part 1: interfaces.

components/sync/driver/backend_data_type_configurer.cc

Index: components/sync/driver/backend_data_type_configurer.cc
diff --git a/components/sync/driver/backend_data_type_configurer.cc b/components/sync/driver/backend_data_type_configurer.cc
deleted file mode 100644
index b689755ee0e37a3a37e28a0b4fb5b939952308b4..0000000000000000000000000000000000000000
--- a/components/sync/driver/backend_data_type_configurer.cc
+++ /dev/null
@@ -1,32 +0,0 @@
-// 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/driver/backend_data_type_configurer.h"
-
-namespace syncer {
-
-// static
-ModelTypeSet BackendDataTypeConfigurer::GetDataTypesInState(
-    DataTypeConfigState state,
-    const DataTypeConfigStateMap& state_map) {
-  ModelTypeSet types;
-  for (DataTypeConfigStateMap::const_iterator type_it = state_map.begin();
-       type_it != state_map.end(); ++type_it) {
-    if (type_it->second == state)
-      types.Put(type_it->first);
-  }
-  return types;
-}
-
-// static
-void BackendDataTypeConfigurer::SetDataTypesState(
-    DataTypeConfigState state,
-    ModelTypeSet types,
-    DataTypeConfigStateMap* state_map) {
-  for (ModelTypeSet::Iterator it = types.First(); it.Good(); it.Inc()) {
-    (*state_map)[it.Get()] = state;
-  }
-}
-
-}  // namespace syncer