For Linux, create a ZygoteForkDelegate that uses the nacl_helper executable

chrome/common/nacl_types.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// 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.
 
 // Handle passing definitions for NaCl
 #ifndef CHROME_COMMON_NACL_TYPES_H_
 #define CHROME_COMMON_NACL_TYPES_H_
 #pragma once
 
+#include "build/build_config.h"
 #if defined(OS_POSIX)
 #include "base/file_descriptor_posix.h"
 #endif
 
+#if defined(OS_WIN)
+#include <windows.h>   // for HANDLE
+#endif
+
 // TODO(gregoryd): add a Windows definition for base::FileDescriptor
 namespace nacl {
 #if defined(OS_WIN)
   // We assume that HANDLE always uses less than 32 bits
   typedef int FileDescriptor;
   inline HANDLE ToNativeHandle(const FileDescriptor& desc) {
     return reinterpret_cast<HANDLE>(desc);
   }
 #elif defined(OS_POSIX)
   typedef base::FileDescriptor FileDescriptor;
   inline int ToNativeHandle(const FileDescriptor& desc) {
     return desc.fd;
   }
 #endif
 }
 
 #endif  // CHROME_COMMON_NACL_TYPES_H_