Replace ScopedThreadProxy with MessageLoopProxy & WeakPtrs.

remoting/host/it2me_host_user_interface.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_IT2ME_HOST_USER_INTERFACE_H_
 #define REMOTING_HOST_IT2ME_HOST_USER_INTERFACE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 
 #include "remoting/host/host_user_interface.h"
 
 namespace remoting {
 
 class ContinueWindow;
 
 // This class implements the IT2Me-specific parts of the ChromotingHost:
 //   Disconnect and Continue window popups.
 //   IT2Me-specific handling of multiple connection attempts.
@@ skipping 36 matching lines @@
   void OnShutdownHostTimer();
 
   // Show or hide the Continue Sharing window on the UI thread.
   void ShowContinueWindow(bool show);
   void StartContinueWindowTimer(bool start);
 
   // Provide a user interface requiring the user to periodically re-confirm
   // the connection.
   scoped_ptr<ContinueWindow> continue_window_;
 
-  // Timer controlling the "continue session" dialog.
-  scoped_ptr<TimerTask> timer_task_;
+  // Weak pointer factory used to abandon the "continue session" timer when
+  // hiding the "continue session" dialog, or tearing down the IT2Me UI.
+  base::WeakPtrFactory<It2MeHostUserInterface> timer_weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(It2MeHostUserInterface);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_IT2ME_HOST_USER_INTERFACE_H_