Add the npapi_test_plugin to the Mac build of test_shell

webkit/glue/plugins/test/plugin_javascript_open_popup.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 "build/build_config.h"
 #if defined(OS_LINUX)
 // HACK: we need this #define in place before npapi.h is included for
 // plugins to work. However, all sorts of headers include npapi.h, so
 // the only way to be certain the define is in place is to put it
 // here.  You might ask, "Why not set it in npapi.h directly, or in
@@ skipping 77 matching lines @@
     Status status = XQueryTree(extra->display, xwindow, &root, &parent,
                                NULL, NULL);  // NULL children info.
     DCHECK(status != 0);
     if (!parent || parent == root)
       SetError("Windowed plugin instantiated with NULL parent");
     return true;
   }
 
   return false;
 }
+#elif defined(OS_MACOSX)
+bool ExecuteJavascriptPopupWindowTargetPluginTest::CheckWindow(
+    NPWindow* window) {
+  // TODO(port) scaffolding--replace with a real test once NPWindow is done.
+  return false;
+}
 #endif
 
 } // namespace NPAPIClient