Migrate signin error messages to the new avatar bubble

chrome/browser/ui/webui/signin/login_ui_service.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_WEBUI_SIGNIN_LOGIN_UI_SERVICE_H_
 #define CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_SERVICE_H_
 
 #include "base/basictypes.h"
 #include "base/observer_list.h"
+#include "base/strings/string16.h"
 #include "components/keyed_service/core/keyed_service.h"
 
 class Browser;
 class Profile;
 
 // The LoginUIService helps track per-profile information for the login related
 // UIs - for example, whether there is login UI currently on-screen.
 class LoginUIService : public KeyedService {
  public:
   // Various UI components implement this API to allow LoginUIService to
@@ skipping 51 matching lines @@
   void LoginUIClosed(LoginUI* ui);
 
   // Called when the sync settings confirmation UI is closed.
   void SyncConfirmationUIClosed(bool configure_sync_first);
 
   // Delegate to an existing login dialog if one exists.
   // If not, we make a new popup dialog window, and set it to
   // chrome://signin to ask the user to sign in to chrome.
   void ShowLoginPopup();
 
+  // Displays login results.
+  void DisplayLoginResult(Browser* browser, const base::string16& message);
+
+  // Gets the last login result set through |DisplayLoginResult|.
+  const base::string16& GetLastLoginResult();
+
  private:
   // Weak pointer to the currently active login UI, or null if none.
   LoginUI* ui_;
   Profile* profile_;
 
   // List of observers.
   ObserverList<Observer> observer_list_;
 
+  base::string16 last_login_result_;
+
   DISALLOW_COPY_AND_ASSIGN(LoginUIService);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_SERVICE_H_