Update profile switcher button on Linux.

chrome/browser/ui/views/profiles/profile_chooser_view.h

 // Copyright 2014 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_PROFILES_PROFILE_CHOOSER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_PROFILES_PROFILE_CHOOSER_VIEW_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 39 matching lines @@
   // the existing bubble will auto-close due to focus loss.
   static void ShowBubble(
       profiles::BubbleViewMode view_mode,
       profiles::TutorialMode tutorial_mode,
       const signin::ManageAccountsParams& manage_accounts_params,
       signin_metrics::AccessPoint access_point,
       views::View* anchor_view,
       Browser* browser,
       bool is_source_keyboard);
   static bool IsShowing();
+  static views::Widget* GetCurrentBubbleWidget();
   static void Hide();
 
   const Browser* browser() const { return browser_; }
 
  private:
   friend class ProfileChooserViewExtensionsTest;
 
   typedef std::vector<size_t> Indexes;
   typedef std::map<views::Button*, int> ButtonIndexes;
   typedef std::map<views::Button*, std::string> AccountButtonIndexes;
@@ skipping 198 matching lines @@
   // The GAIA service type provided in the response header.
   signin::GAIAServiceType gaia_service_type_;
 
   // The current access point of sign in.
   const signin_metrics::AccessPoint access_point_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileChooserView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PROFILES_PROFILE_CHOOSER_VIEW_H_