Clean up plug-in placeholders:

chrome/renderer/custom_menu_commands.h

Index: chrome/renderer/custom_menu_commands.h
diff --git a/chrome/renderer/custom_menu_commands.h b/chrome/renderer/custom_menu_commands.h
new file mode 100644
index 0000000000000000000000000000000000000000..e8bf53df609a91b96602548d65875eb579b5aa0a
--- /dev/null
+++ b/chrome/renderer/custom_menu_commands.h
@@ -0,0 +1,18 @@
+// 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 CHROME_RENDERER_CUSTOM_MENU_COMMANDS_H_
+#define CHROME_RENDERER_CUSTOM_MENU_COMMANDS_H_
+#pragma once
+
+namespace chrome {
+
+enum MenuCommands {
+  MENU_COMMAND_PLUGIN_RUN = 1,
+  MENU_COMMAND_PLUGIN_HIDE = 2,
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_RENDERER_CUSTOM_MENU_COMMANDS_H_