Make BlockedPlugin implement RenderViewObserver so that RenderView doesn't ha...

chrome/renderer/custom_menu_listener.h

-// Copyright (c) 2010 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_LISTENER_H_
-#define CHROME_RENDERER_CUSTOM_MENU_LISTENER_H_
-#pragma once
-
-// CustomMenuListener is an interface that can be registered with RenderView by
-// classes that wish to use custom context menus. There is a single callback,
-// MenuItemSelected(), which fires when a custom menu item was chosen by the
-// user.
-class CustomMenuListener {
- public:
-  virtual void MenuItemSelected(unsigned id) = 0;
-
- protected:
-  virtual ~CustomMenuListener() {}
-};
-
-#endif  // CHROME_RENDERER_CUSTOM_MENU_LISTENER_H_
-