This fixes http://code.google.com/p/chromium/issues/detail?id=2846, which is ...

webkit/glue/plugins/plugin_lib.cc

 // 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.
 
 #include "config.h"
 
 #include "webkit/glue/plugins/plugin_lib.h"
 
 #include "base/file_util.h"
 #include "base/file_version_info.h"
@@ skipping 27 matching lines @@
   // We can only have one PluginLib object per plugin as it controls the per
   // instance function calls (i.e. NP_Initialize and NP_Shutdown).  So we keep
   // a (non-ref counted) map of PluginLib objects.
   if (!loaded_libs_)
     loaded_libs_ = new PluginMap();
 
   PluginMap::const_iterator iter = loaded_libs_->find(filename);
   if (iter != loaded_libs_->end())
     return iter->second;
 
-  static const InternalPluginInfo activex_shim_info = {
+  static const InternalPluginInfo activex_shim_info_generic = {
     {kActiveXShimFileName,
      L"ActiveX Plug-in",
      L"ActiveX Plug-in provides a shim to support ActiveX controls",
      L"1, 0, 0, 1",
-     L"application/x-oleobject|application/oleobject|"
-         L"application/x-ms-wmp|application/asx|video/x-ms-asf-plugin|"
+     L"application/x-oleobject|application/oleobject",
+     L"*|*",
+     L""
+    },
+    activex_shim::ActiveX_Shim_NP_GetEntryPoints,
+    activex_shim::ActiveX_Shim_NP_Initialize,
+    activex_shim::ActiveX_Shim_NP_Shutdown
+  };
+
+  static const InternalPluginInfo activex_shim_windows_media_player = {
+    {kActivexShimFileNameForMediaPlayer,
+     kActivexShimFileNameForMediaPlayer,
+     L"Windows Media Player",
+     L"1, 0, 0, 1",
+     L"application/x-ms-wmp|application/asx|video/x-ms-asf-plugin|"
          L"application/x-mplayer2|video/x-ms-asf|video/x-ms-wm|audio/x-ms-wma|"
          L"audio/x-ms-wax|video/x-ms-wmv|video/x-ms-wvx",
      L"*|*|*|*|*|*|asf,asx,*|wm,*|wma,*|wax,*|wmv,*|wvx,*",
      L""
     },
     activex_shim::ActiveX_Shim_NP_GetEntryPoints,
     activex_shim::ActiveX_Shim_NP_Initialize,
     activex_shim::ActiveX_Shim_NP_Shutdown
   };
 
   static const InternalPluginInfo default_null_plugin_info = {
     {kDefaultPluginDllName,
      L"Default Plug-in",
      L"Provides functionality for installing third-party plug-ins",
      L"1, 0, 0, 1",
      L"*",
      L"",
      L""
     },
     default_plugin::NP_GetEntryPoints,
     default_plugin::NP_Initialize,
     default_plugin::NP_Shutdown
   };
 
   WebPluginInfo* info = NULL;
   const InternalPluginInfo* internal_plugin_info = NULL;
-  if (filename == activex_shim_info.version_info.file_name) {
-    info = CreateWebPluginInfo(activex_shim_info.version_info);
-    internal_plugin_info = &activex_shim_info;
+  if (filename == activex_shim_info_generic.version_info.file_name) {
+    info = CreateWebPluginInfo(activex_shim_info_generic.version_info);
+    internal_plugin_info = &activex_shim_info_generic;
+  } else if (filename ==
+             activex_shim_windows_media_player.version_info.file_name) {
+    info = CreateWebPluginInfo(activex_shim_windows_media_player.version_info);
+    internal_plugin_info = &activex_shim_windows_media_player;
   } else if (filename == default_null_plugin_info.version_info.file_name) {
     info = CreateWebPluginInfo(default_null_plugin_info.version_info);
     internal_plugin_info = &default_null_plugin_info;
   } else {
     info = ReadWebPluginInfo(filename);
     if (!info) {
       DLOG(INFO) << "This file isn't a valid NPAPI plugin: " << filename;
       return NULL;
     }
   }
@@ skipping 307 matching lines @@
   pvi.product_name = version_info->product_name();
   pvi.file_description = version_info->file_description();
   pvi.file_version = version_info->file_version();
   pvi.file_name = filename;
 
   return CreateWebPluginInfo(pvi);
 }
 
 }  // namespace NPAPI