Remove #pragma once from chrome/browser/sync

chrome/browser/sync/test/integration/extension_settings_helper.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_SYNC_TEST_INTEGRATION_EXTENSION_SETTINGS_HELPER_H_
 #define CHROME_BROWSER_SYNC_TEST_INTEGRATION_EXTENSION_SETTINGS_HELPER_H_
-#pragma once
 
 #include <string>
 
 class Profile;
 namespace base {
 class DictionaryValue;
 }
 
 namespace extension_settings_helper {
 
 // Calls Set() with |settings| for |profile| and the extension with ID |id|.
 void SetExtensionSettings(
     Profile* profile,
     const std::string& id,
     const base::DictionaryValue& settings);
 
 // Calls Set() with |settings| for all profiles the extension with ID |id|.
 void SetExtensionSettingsForAllProfiles(
     const std::string& id, const base::DictionaryValue& settings);
 
 // Returns whether the extension settings are the same across all profiles.
 bool AllExtensionSettingsSameAsVerifier();
 
 }  // namespace extension_settings_helper
 
 #endif  // CHROME_BROWSER_SYNC_TEST_INTEGRATION_EXTENSION_SETTINGS_HELPER_H_