[cros] Remove few account screen mentions.

chrome/browser/chromeos/login/html_page_screen.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_CHROMEOS_LOGIN_HTML_PAGE_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_HTML_PAGE_SCREEN_H_
 #pragma once
 
 #include <string>
 
@@ skipping 50 matching lines @@
  protected:
   // Overrides WebPageScreen:
   virtual void OnNetworkTimeout();
 
  private:
   // ViewScreen implementation:
   virtual void CreateView();
   virtual void Refresh();
   virtual HTMLPageView* AllocateView();
 
-  virtual void LoadingStateChanged(TabContents* source);
   virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
 
   // WebPageScreen implementation:
   virtual void CloseScreen(ScreenObserver::ExitCodes code);
 
   // URL to navigate.
   std::string url_;
 
   DISALLOW_COPY_AND_ASSIGN(HTMLPageScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_HTML_PAGE_SCREEN_H_