Make the windows_version.h functions threadsafe by using a singleton.

media/tools/mfplayer/mf_playback_main.cc

-// Copyright (c) 2010 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.
 
 // This header is placed first to avoid compiler warning.
 #include "media/tools/mfplayer/mfplayer.h"
 
 #include <mfapi.h>
+#define STRSAFE_NO_DEPRECATE
 #include <strsafe.h>
+
 #include <cassert>
 
 namespace mfplayer {
 
 const wchar_t g_window_title[] = L"MFBasicPlayback";
 const wchar_t g_window_class[] = L"Chrome_MFBasicPlayback";
 
 // True if there is no video playing, so we have to paint the window ourselves.
 bool g_repaint_client = true;
 
@@ skipping 295 matching lines @@
   printf("Terminated\n");
   return retval;
 }
 
 }  // namespace mfplayer
 
 
 int main(int argc, char** argv) {
   return mfplayer::main2(argc, argv);
 }