[Sync] SyncEngine refactor part 1: interfaces.

components/sync/engine/model_type_configurer.cc

Index: components/sync/engine/model_type_configurer.cc
diff --git a/components/sync/driver/backend_data_type_configurer.cc b/components/sync/engine/model_type_configurer.cc
similarity index 66%
rename from components/sync/driver/backend_data_type_configurer.cc
rename to components/sync/engine/model_type_configurer.cc
index b689755ee0e37a3a37e28a0b4fb5b939952308b4..914acc4d75e820a1e14adcc0ec2a5410cdd24f55 100644
--- a/components/sync/driver/backend_data_type_configurer.cc
+++ b/components/sync/engine/model_type_configurer.cc
@@ -2,12 +2,12 @@
 // 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"
+#include "components/sync/engine/model_type_configurer.h"
 
 namespace syncer {
 
 // static
-ModelTypeSet BackendDataTypeConfigurer::GetDataTypesInState(
+ModelTypeSet ModelTypeConfigurer::GetDataTypesInState(
     DataTypeConfigState state,
     const DataTypeConfigStateMap& state_map) {
   ModelTypeSet types;
@@ -20,10 +20,9 @@ ModelTypeSet BackendDataTypeConfigurer::GetDataTypesInState(
 }
 
 // static
-void BackendDataTypeConfigurer::SetDataTypesState(
-    DataTypeConfigState state,
-    ModelTypeSet types,
-    DataTypeConfigStateMap* state_map) {
+void ModelTypeConfigurer::SetDataTypesState(DataTypeConfigState state,
+                                            ModelTypeSet types,
+                                            DataTypeConfigStateMap* state_map) {
   for (ModelTypeSet::Iterator it = types.First(); it.Good(); it.Inc()) {
     (*state_map)[it.Get()] = state;
   }