Move some files from sync/engine to internal_api

chrome/browser/sync/internal_api/change_reorder_buffer.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.
 //
 // Defines ChangeReorderBuffer, which can be used to sort a list of item
 // actions to achieve the ordering constraint required by the SyncObserver
 // interface of the SyncAPI.
 
-#ifndef CHROME_BROWSER_SYNC_ENGINE_CHANGE_REORDER_BUFFER_H_
-#define CHROME_BROWSER_SYNC_ENGINE_CHANGE_REORDER_BUFFER_H_
+#ifndef CHROME_BROWSER_SYNC_INTERNAL_API_CHANGE_REORDER_BUFFER_H_
+#define CHROME_BROWSER_SYNC_INTERNAL_API_CHANGE_REORDER_BUFFER_H_
 #pragma once
 
 #include <map>
 #include <vector>
 
 #include "base/memory/linked_ptr.h"
 #include "chrome/browser/sync/internal_api/base_transaction.h"
 #include "chrome/browser/sync/internal_api/sync_manager.h"
 #include "chrome/browser/sync/protocol/sync.pb.h"
 
@@ skipping 92 matching lines @@
   SpecificsMap specifics_;
 
   // Stores type-specific extra data per-ID.
   ExtraDataMap extra_data_;
 
   DISALLOW_COPY_AND_ASSIGN(ChangeReorderBuffer);
 };
 
 }  // namespace sync_api
 
-#endif  // CHROME_BROWSER_SYNC_ENGINE_CHANGE_REORDER_BUFFER_H_
+#endif  // CHROME_BROWSER_SYNC_INTERNAL_API_CHANGE_REORDER_BUFFER_H_