Migrate signin error messages to the new avatar bubble

chrome/browser/ui/sync/one_click_signin_helper.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 CHROME_BROWSER_UI_SYNC_ONE_CLICK_SIGNIN_HELPER_H_
 #define CHROME_BROWSER_UI_SYNC_ONE_CLICK_SIGNIN_HELPER_H_
 
 #include <string>
 
 #include "base/gtest_prod_util.h"
@@ skipping 214 matching lines @@
       OneClickSigninSyncStarter::Callback sync_callback);
 
   static void RedirectToNtpOrAppsPage(
       content::WebContents* contents, signin::Source source);
 
   // If the |source| is not settings page/webstore, redirects to
   // the NTP/Apps page.
   static void RedirectToNtpOrAppsPageIfNecessary(
       content::WebContents* contents, signin::Source source);
 
-  static void ShowSigninErrorBubble(Browser* browser, const std::string& error);
-
   // Remove the item currently at the top of the history list if it's
   // the Gaia redirect URL. Due to limitations of the NavigationController
   // this cannot be done until a new page becomes "current".
   static void RemoveSigninRedirectURLHistoryItem(
       content::WebContents* web_contents);
 
   static void LogConfirmHistogramValue(int action);
 
  private:
   friend class content::WebContentsUserData<OneClickSigninHelper>;
@@ skipping 138 matching lines @@
 
   // Allows unittest to avoid starting sync for real.
   bool do_not_start_sync_for_testing_;
 
   base::WeakPtrFactory<OneClickSigninHelper> weak_pointer_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OneClickSigninHelper);
 };
 
 #endif  // CHROME_BROWSER_UI_SYNC_ONE_CLICK_SIGNIN_HELPER_H_