Remove #pragma once from chrome/browser/extensions

chrome/browser/extensions/settings/setting_sync_data.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTING_SYNC_DATA_H_
 #define CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTING_SYNC_DATA_H_
-#pragma once
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "sync/api/sync_change.h"
 
 namespace syncer {
 class SyncData;
 }
 
@@ skipping 65 matching lines @@
       const sync_pb::ExtensionSettingSpecifics& specifics);
 
   scoped_refptr<Internal> internal_;
 };
 
 typedef std::vector<SettingSyncData> SettingSyncDataList;
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTING_SYNC_DATA_H_