Add code to be able to detect windows7 in GetWinVersion.

base/win_util.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.
 
 #ifndef BASE_WIN_UTIL_H__
 #define BASE_WIN_UTIL_H__
 
 #include <windows.h>
 #include <aclapi.h>
 
 #include <string>
 
 #include "base/tracked.h"
 
 namespace win_util {
 
 // NOTE: Keep these in order so callers can do things like
 // "if (GetWinVersion() > WINVERSION_2000) ...".  It's OK to change the values,
 // though.
 enum WinVersion {
   WINVERSION_PRE_2000 = 0,  // Not supported
   WINVERSION_2000 = 1,
   WINVERSION_XP = 2,
   WINVERSION_SERVER_2003 = 3,
   WINVERSION_VISTA = 4,
+  WINVERSION_2008 = 5,
+  WINVERSION_WIN7 = 6,
 };
 
 void GetNonClientMetrics(NONCLIENTMETRICS* metrics);
 
 // Returns the running version of Windows.
 WinVersion GetWinVersion();
 
 // Returns the major and minor version of the service pack installed.
 void GetServicePackLevel(int* major, int* minor);
 
@@ skipping 81 matching lines @@
 #else
 #define TRACK_HWND_CREATION(hwnd) win_util::NotifyHWNDCreation(FROM_HERE, hwnd)
 #define TRACK_HWND_DESTRUCTION(hwnd) \
     win_util::NotifyHWNDDestruction(FROM_HERE, hwnd)
 #endif
 
 }  // namespace win_util
 
 #endif  // BASE_WIN_UTIL_H__