Remove #pragma once from chrome/browser/sync

chrome/browser/sync/test/integration/extensions_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_EXTENSIONS_HELPER_H_
 #define CHROME_BROWSER_SYNC_TEST_INTEGRATION_EXTENSIONS_HELPER_H_
-#pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
 
 class Profile;
 
@@ skipping 51 matching lines @@
 // Returns a unique extension name based in the integer |index|.
 std::string CreateFakeExtensionName(int index);
 
 // Converts a fake extension name back into the index used to generate it.
 // Returns true if successful, false on failure.
 bool ExtensionNameToIndex(const std::string& name, int* index);
 
 }  // namespace extensions_helper
 
 #endif  // CHROME_BROWSER_SYNC_TEST_INTEGRATION_EXTENSIONS_HELPER_H_