Atomic ops cleanup.

base/atomicops_internals_x86_msvc.h

 // Copyright (c) 2006-2008 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.
 
 // This file is an internal atomic implementation, use base/atomicops.h instead.
 
 #ifndef BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_
 #define BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_
 
 #include <windows.h>
 
+#include "base/macros.h"
+
 #if defined(ARCH_CPU_64_BITS)
 // windows.h #defines this (only on x64). This causes problems because the
 // public API also uses MemoryBarrier at the public name for this fence. So, on
 // X64, undef it, and call its documented
 // (http://msdn.microsoft.com/en-us/library/windows/desktop/ms684208.aspx)
 // implementation directly.
 #undef MemoryBarrier
 #endif
 
 namespace base {
@@ skipping 163 matching lines @@
   return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
 }
 
 
 #endif  // defined(_WIN64)
 
 }  // namespace base::subtle
 }  // namespace base
 
 #endif  // BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_