[Chromoting] Make the AuthCodeGetter component of the Windows host configurer

remoting/host/setup/win/auth_code_getter.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 REMOTING_HOST_SETUP_WIN_AUTH_CODE_GETTER_H
 #define REMOTING_HOST_SETUP_WIN_AUTH_CODE_GETTER_H
 
 #include <ole2.h>
 #include <exdisp.h>
 
@@ skipping 25 matching lines @@
   // Returns whether to stop polling the browser's URL. If true, then
   // |auth_code| is an authorization code, or the empty string on an error.
   bool TestBrowserUrl(std::string* auth_code);
   // Kills the browser.
   void KillBrowser();
 
   // The authorization code callback.
   base::Callback<void(const std::string&)> on_auth_code_;
   // The browser through which the user requests an authorization code.
   base::win::ScopedComPtr<IWebBrowser2, &IID_IWebBrowser2> browser_;
-  // Whether the browser is running.
-  bool browser_running_;
   // A timer used to poll the browser's URL.
   base::OneShotTimer<AuthCodeGetter> timer_;
   // The interval at which the timer fires.
   base::TimeDelta timer_interval_;
 
   DISALLOW_COPY_AND_ASSIGN(AuthCodeGetter);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_SETUP_WIN_AUTH_CODE_GETTER_H