Add DeletePluginInDeallocate UI test.

webkit/plugins/npapi/test/plugin_delete_plugin_in_deallocate_test.h

Index: webkit/plugins/npapi/test/plugin_delete_plugin_in_deallocate_test.h
diff --git a/webkit/plugins/npapi/test/plugin_delete_plugin_in_deallocate_test.h b/webkit/plugins/npapi/test/plugin_delete_plugin_in_deallocate_test.h
new file mode 100644
index 0000000000000000000000000000000000000000..4dabd0e647460b7038ee7127f686086ed44ec7a2
--- /dev/null
+++ b/webkit/plugins/npapi/test/plugin_delete_plugin_in_deallocate_test.h
@@ -0,0 +1,30 @@
+// 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.
+#ifndef WEBKIT_PLUGINS_NPAPI_TEST_DELETE_PLUGIN_IN_DEALLOCATE_TEST_H_
+#define WEBKIT_PLUGINS_NPAPI_TEST_DELETE_PLUGIN_IN_DEALLOCATE_TEST_H_
+
+#include "webkit/plugins/npapi/test/plugin_test.h"
+
+namespace NPAPIClient {
+
+// This test verifies that if a plugin scripts the page from within an
+// NPObject's deallocation, and the page tears down the plugin, then that
+// object doesn't end up being double-freed.
+
+class DeletePluginInDeallocateTest : public PluginTest {
+ public:
+  // Constructor.
+  DeletePluginInDeallocateTest(NPP id, NPNetscapeFuncs* host_functions);
+
+  // NPAPI handlers.
+  virtual NPError SetWindow(NPWindow* pNPWindow);
+  virtual NPError Destroy();
+
+  NPObject* npobject_;
+  bool test_started_;
+};
+
+}  // namespace NPAPIClient
+
+#endif  // WEBKIT_PLUGINS_NPAPI_TEST_DELETE_PLUGIN_IN_DEALLOCATE_TEST_H_