Remove #pragma once from content

content/common/sandbox_mac.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 CONTENT_COMMON_SANDBOX_MAC_H_
 #define CONTENT_COMMON_SANDBOX_MAC_H_
-#pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
 #include "base/gtest_prod_util.h"
 #include "content/common/content_export.h"
 #include "content/public/common/sandbox_type_mac.h"
 
 class FilePath;
@@ skipping 139 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(MacDirAccessSandboxTest, StringEscape);
   FRIEND_TEST_ALL_PREFIXES(MacDirAccessSandboxTest, RegexEscape);
   FRIEND_TEST_ALL_PREFIXES(MacDirAccessSandboxTest, SandboxAccess);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Sandbox);
 };
 
 }  // namespace sandbox
 
 #endif  // CONTENT_COMMON_SANDBOX_MAC_H_