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

sandbox/src/Wow64.h

-// Copyright (c) 2006-2008 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.
 
 #ifndef SANDBOX_SRC_WOW64_H__
 #define SANDBOX_SRC_WOW64_H__
 
 #include <windows.h>
 
 #include "base/basictypes.h"
 #include "sandbox/src/sandbox_types.h"
 
 namespace sandbox {
 
 class TargetProcess;
 
 // This class wraps the code needed to interact with the Windows On Windows
 // subsystem on 64 bit OSes, from the point of view of interceptions.
 class Wow64 {
  public:
   Wow64(TargetProcess* child, HMODULE ntdll)
-      : child_(child), ntdll_(ntdll), init_(false), dll_load_(NULL),
-        continue_load_(NULL) {}
+      : child_(child), ntdll_(ntdll), dll_load_(NULL), continue_load_(NULL) {}
   ~Wow64();
 
   // Waits for the 32 bit DLL to get loaded on the child process. This function
   // will return immediately if not running under WOW, or launch the helper
   // process and wait until ntdll is ready.
-  bool WaitForNtdll(DWORD timeout_ms);
-
-  // Returns true if this is a 32 bit process running on a 64 bit OS.
-  bool IsWow64();
+  bool WaitForNtdll();
 
  private:
   // Runs the WOW helper process, passing the address of a buffer allocated on
   // the child (one page).
-  bool RunWowHelper(void* buffer, DWORD timeout_ms);
+  bool RunWowHelper(void* buffer);
 
   // This method receives "notifications" whenever a DLL is mapped on the child.
-  bool DllMapped(DWORD timeout_ms);
+  bool DllMapped();
 
   // Returns true if ntdll.dll is mapped on the child.
   bool NtdllPresent();
 
   TargetProcess* child_;  // Child process.
   HMODULE ntdll_;         // ntdll on the parent.
   HANDLE dll_load_;       // Event that is signaled on dll load.
   HANDLE continue_load_;  // Event to signal to continue execution on the child.
-  bool init_;             // Initialization control.
-  bool is_wow64_;         // true on WOW64 environments.
   DISALLOW_IMPLICIT_CONSTRUCTORS(Wow64);
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_SRC_WOW64_H__