Lump client and server versions of Windows together.

base/win/windows_version.h

Index: base/win/windows_version.h
diff --git a/base/win/windows_version.h b/base/win/windows_version.h
index 1061b47a97383fb40b0e79e9a1ead6dc86f2ea85..e1faabae51e3be99bfdc8f8c8b8ce2039c728bb3 100644
--- a/base/win/windows_version.h
+++ b/base/win/windows_version.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -24,9 +24,9 @@ enum Version {
   VERSION_SERVER_2003,  // Also includes Windows XP Professional x64.
   VERSION_VISTA,
   VERSION_SERVER_2008,
-  VERSION_WIN7,
-  VERSION_WIN8,
-  VERSION_WIN_LAST,  // Indicates error condition.
+  VERSION_WIN7,         // Also includes Windows Server 2008 R2.
+  VERSION_WIN8,         // Also includes Windows Server 2012.
+  VERSION_WIN_LAST,     // Indicates error condition.
 };
 
 // A singleton that can be used to query various pieces of information about the