Don't reopen avatar bubble view on second click

chrome/browser/ui/views/avatar_menu_button.h

 // 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_BROWSER_UI_VIEWS_AVATAR_MENU_BUTTON_H_
 #define CHROME_BROWSER_UI_VIEWS_AVATAR_MENU_BUTTON_H_
 #pragma once
 
 #include <string>
 
 #include "base/compiler_specific.h"
+#include "chrome/browser/ui/views/bubble/bubble.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "views/controls/button/menu_button.h"
 #include "views/controls/menu/view_menu_delegate.h"
 
 namespace gfx {
 class Canvas;
 }
 class Browser;
 
 // AvatarMenuButton
 //
 // A button used to show either the incognito avatar or the profile avatar.
 // The button can optionally have a menu attached to it.
 
 class AvatarMenuButton : public views::MenuButton,
-                         public views::ViewMenuDelegate {
+                         public views::ViewMenuDelegate,
+                         public Bubble::Observer {
  public:
   // Creates a new button. If |has_menu| is true then clicking on the button
   // will cause the profile menu to be displayed.
   AvatarMenuButton(Browser* browser, bool has_menu);
 
   virtual ~AvatarMenuButton();
 
   // views::MenuButton
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual bool HitTest(const gfx::Point& point) const OVERRIDE;
 
   // views::TextButton
   virtual void SetIcon(const SkBitmap& icon) OVERRIDE;
 
  private:
   // views::ViewMenuDelegate
   virtual void RunMenu(views::View* source, const gfx::Point& pt) OVERRIDE;
 
+  // Bubble::Observer implementation.
+  virtual void OnBubbleClosing();
+
   Browser* browser_;
+  Bubble* bubble_;
   bool has_menu_;
   bool set_taskbar_decoration_;
   scoped_ptr<ui::MenuModel> menu_model_;
 
   DISALLOW_COPY_AND_ASSIGN(AvatarMenuButton);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_AVATAR_MENU_BUTTON_H_