Fix layout test failures. Looks like keying the plugins based on OriginalFil...

webkit/glue/plugins/webplugin_delegate_impl.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 "webkit/glue/plugins/webplugin_delegate_impl.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 127 matching lines @@
       handle_event_message_filter_hook_(NULL),
       handle_event_pump_messages_event_(NULL),
       handle_event_depth_(0),
       user_gesture_message_posted_(false),
 #pragma warning(suppress: 4355)  // can use this
       user_gesture_msg_factory_(this),
       plugin_module_handle_(NULL) {
   memset(&window_, 0, sizeof(window_));
 
   const WebPluginInfo& plugin_info = instance_->plugin_lib()->plugin_info();
-  std::string filename = StringToLowerASCII(plugin_info.filename);
+  std::string filename =
+      WideToASCII(StringToLowerASCII(plugin_info.path.BaseName().value()));
 
   if (instance_->mime_type() == "application/x-shockwave-flash" ||
       filename == "npswf32.dll") {
     // Flash only requests windowless plugins if we return a Mozilla user
     // agent.
     instance_->set_use_mozilla_user_agent();
     quirks_ |= PLUGIN_QUIRK_THROTTLE_WM_USER_PLUS_ONE;
     quirks_ |= PLUGIN_QUIRK_PATCH_SETCURSOR;
   } else if (filename == "nppdf32.dll") {
     // Check for the version number above or equal 9.
@@ skipping 1006 matching lines @@
 
   // It is ok to pass NULL here to GetCursor as we are not looking for cursor
   // types defined by Webkit.
   HCURSOR previous_cursor =
       current_plugin_instance_->current_windowless_cursor_.GetCursor(NULL);
 
   current_plugin_instance_->current_windowless_cursor_.InitFromExternalCursor(
       cursor);
   return previous_cursor;
 }