Create a "GetWOW64Status()" utility function and make the rest of the codebas...

chrome/browser/nacl_host/nacl_process_host.h

 // Copyright (c) 2010 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_NACL_HOST_NACL_PROCESS_HOST_H_
 #define CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 36 matching lines @@
   struct NaClInternal;
 
   bool LaunchSelLdr();
 
   void SendStartMessage();
 
   virtual void OnProcessLaunched();
 
   virtual bool CanShutdown();
 
-#if defined(OS_WIN)
-  // Check whether the browser process is running on WOW64 - Windows only
-  void CheckIsWow64();
-#endif
-
  private:
   ResourceDispatcherHost* resource_dispatcher_host_;
 
   // The RenderMessageFilter that requested this NaCl process.  We use this
   // for sending the reply once the process has started.
   scoped_refptr<RenderMessageFilter> render_message_filter_;
 
   // The reply message to send.
   IPC::Message* reply_msg_;
 
   // Socket pairs for the NaCl process and renderer.
   scoped_ptr<NaClInternal> internal_;
 
   // Windows platform flag
   bool running_on_wow64_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClProcessHost);
 };
 
 #endif  // CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_