[Sync] Rename ModelEnumSet to ModelTypeSet

chrome/browser/sync/internal_api/base_transaction.h

 // Copyright (c) 2011 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 CHROME_BROWSER_SYNC_INTERNAL_API_BASE_TRANSACTION_H_
 #define CHROME_BROWSER_SYNC_INTERNAL_API_BASE_TRANSACTION_H_
 #pragma once
 
 #include "chrome/browser/sync/internal_api/user_share.h"
 
@@ skipping 33 matching lines @@
 
  private:
   // A syncable ScopedDirLookup, which is the parent of syncable transactions.
   syncable::ScopedDirLookup* lookup_;
 
   browser_sync::Cryptographer* cryptographer_;
 
   DISALLOW_COPY_AND_ASSIGN(BaseTransaction);
 };
 
-syncable::ModelEnumSet GetEncryptedTypes(
+syncable::ModelTypeSet GetEncryptedTypes(
     const sync_api::BaseTransaction* trans);
 
 }  // namespace sync_api
 
 #endif  // CHROME_BROWSER_SYNC_INTERNAL_API_BASE_TRANSACTION_H_