TabContents -> WebContentsImpl, part 4.

content/browser/tab_contents/popup_menu_helper_mac.h

-// Copyright (c) 2012 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 CONTENT_BROWSER_TAB_CONTENTS_POPUP_MENU_HELPER_MAC_H_
-#define CONTENT_BROWSER_TAB_CONTENTS_POPUP_MENU_HELPER_MAC_H_
-
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-#include "ui/gfx/rect.h"
-
-struct WebMenuItem;
-
-namespace content {
-class RenderViewHost;
-class RenderViewHostImpl;
-}
-
-class PopupMenuHelper : public content::NotificationObserver {
- public:
-  // Creates a PopupMenuHelper that will notify |render_view_host| when a user
-  // selects or cancels the popup.
-  explicit PopupMenuHelper(content::RenderViewHost* render_view_host);
-
-  // Shows the popup menu and notifies the RenderViewHost of the selection/
-  // cancel.
-  // This call is blocking.
-  void ShowPopupMenu(const gfx::Rect& bounds,
-                     int item_height,
-                     double item_font_size,
-                     int selected_item,
-                     const std::vector<WebMenuItem>& items,
-                     bool right_aligned);
-
- private:
-  // content::NotificationObserver implementation:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
-  content::NotificationRegistrar notification_registrar_;
-
-  content::RenderViewHostImpl* render_view_host_;
-
-  DISALLOW_COPY_AND_ASSIGN(PopupMenuHelper);
-};
-
-#endif  // CONTENT_BROWSER_TAB_CONTENTS_POPUP_MENU_HELPER_MAC_H_