Mac: ExternalPopupMenu::close should hide a showing popup menu.

content/browser/renderer_host/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_RENDERER_HOST_POPUP_MENU_HELPER_MAC_H_
 #define CONTENT_BROWSER_RENDERER_HOST_POPUP_MENU_HELPER_MAC_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/gfx/rect.h"
 
+#ifdef __OBJC__
+@class WebMenuRunner;
+#else
+class WebMenuRunner;
+#endif
+
 namespace content {
 class RenderViewHost;
 class RenderViewHostImpl;
 class RenderWidgetHostViewMac;
 struct MenuItem;
 
 class PopupMenuHelper : public NotificationObserver {
  public:
   // Creates a PopupMenuHelper that will notify |render_view_host| when a user
   // selects or cancels the popup.
   explicit PopupMenuHelper(RenderViewHost* render_view_host);
+  void Hide();
 
   // 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<MenuItem>& items,
                      bool right_aligned,
                      bool allow_multiple_selection);
 
   // Immediately return from ShowPopupMenu.
   CONTENT_EXPORT static void DontShowPopupMenuForTesting();
 
  protected:
   virtual RenderWidgetHostViewMac* GetRenderWidgetHostView() const;
 
   // NotificationObserver implementation:
   virtual void Observe(int type,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
 
   NotificationRegistrar notification_registrar_;
-
   RenderViewHostImpl* render_view_host_;
+  WebMenuRunner* menu_runner_;
+  bool popup_was_hidden_;
 
   DISALLOW_COPY_AND_ASSIGN(PopupMenuHelper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_POPUP_MENU_HELPER_MAC_H_