Sync: Small refactoring of Directory::CheckTreeInvariants

sync/syncable/model_type.cc

 // Copyright (c) 2012 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 "sync/internal_api/public/base/model_type.h"
 
 #include "base/strings/string_split.h"
 #include "base/values.h"
 #include "sync/protocol/app_notification_specifics.pb.h"
 #include "sync/protocol/app_setting_specifics.pb.h"
@@ skipping 1169 matching lines @@
 }
 
 bool IsActOnceDataType(ModelType model_type) {
   return model_type == HISTORY_DELETE_DIRECTIVES;
 }
 
 bool IsTypeWithServerGeneratedRoot(ModelType model_type) {
   return model_type == BOOKMARKS || model_type == NIGORI;
 }
 
+bool IsTypeWithClientGeneratedRoot(ModelType model_type) {
+  return IsRealDataType(model_type) &&
+         !IsTypeWithServerGeneratedRoot(model_type);
+}
+
 }  // namespace syncer