Enable windowless-based npapi_test_plugin tests on the Mac.

webkit/glue/plugins/test/plugin_client.cc

 // Copyright (c) 2009 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.
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include "base/string_util.h"
 #include "webkit/glue/plugins/test/plugin_client.h"
@@ skipping 106 matching lines @@
     new_test = new NPAPIClient::PluginArgumentsTest(instance,
       NPAPIClient::PluginClient::HostFunctions());
   } else if (test_name == "geturl" || test_name == "geturl_404_response" ||
              test_name == "geturl_fail_write" ||
              test_name == "plugin_referrer_test") {
     new_test = new NPAPIClient::PluginGetURLTest(instance,
       NPAPIClient::PluginClient::HostFunctions());
   } else if (test_name == "npobject_proxy") {
     new_test = new NPAPIClient::NPObjectProxyTest(instance,
       NPAPIClient::PluginClient::HostFunctions());
-#if defined(OS_WIN)
+#if defined(OS_WIN) || defined(OS_MACOSX)
   // TODO(port): plugin_windowless_test.*.
   } else if (test_name == "execute_script_delete_in_paint" ||
              test_name == "execute_script_delete_in_mouse_move" ||
              test_name == "delete_frame_test" ||
              test_name == "multiple_instances_sync_calls" ||
              test_name == "no_hang_if_init_crashes") {
     new_test = new NPAPIClient::WindowlessPluginTest(instance,
       NPAPIClient::PluginClient::HostFunctions(), test_name);
     windowless_plugin = true;
 #endif
@@ skipping 192 matching lines @@
     (NPAPIClient::PluginTest*)instance->pdata;
 
   return plugin->HandleEvent(event);
 }
 
 void* NPP_GetJavaClass(void) {
   // XXXMB - do work here.
   return NULL;
 }
 } // extern "C"