Fix race condition disconnecting hosts.

remoting/host/local_input_monitor_thread_win.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 LOCAL_INPUT_MONITOR_THREAD_WIN_H_
 #define LOCAL_INPUT_MONITOR_THREAD_WIN_H_
 
 #include <set>
 
 #include "base/compiler_specific.h"
+#include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/simple_thread.h"
 #include "remoting/host/chromoting_host.h"
 
 namespace remoting {
 
 class LocalInputMonitorThread : public base::SimpleThread {
  public:
   static void AddHostToInputMonitor(ChromotingHost* host);
   static void RemoveHostFromInputMonitor(ChromotingHost* host);
 
  private:
   LocalInputMonitorThread();
   virtual ~LocalInputMonitorThread();
 
   void AddHost(ChromotingHost* host);
   bool RemoveHost(ChromotingHost* host);
 
   void Stop();
   virtual void Run() OVERRIDE;  // Overridden from SimpleThread.
 
   void LocalMouseMoved(const SkIPoint& mouse_position);
   static LRESULT WINAPI HandleLowLevelMouseEvent(int code,
                                                  WPARAM event_type,
                                                  LPARAM event_data);
 
   base::Lock hosts_lock_;
-  typedef std::set<ChromotingHost*> ChromotingHosts;
+  typedef std::set<scoped_refptr<ChromotingHost> > ChromotingHosts;
   ChromotingHosts hosts_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalInputMonitorThread);
 };
 
 }  // namespace remoting
 
 #endif