[Chromoting] Reimplemented the worker process launcher to take into account the encountered issues:

remoting/host/win/host_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 REMOTING_HOST_WIN_HOST_SERVICE_H_
 #define REMOTING_HOST_WIN_HOST_SERVICE_H_
 
 #include <windows.h>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/singleton.h"
 #include "base/observer_list.h"
 #include "base/synchronization/waitable_event.h"
 #include "remoting/host/win/wts_console_monitor.h"
 
 class CommandLine;
 class MessageLoop;
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace remoting {
 
 class AutoThreadTaskRunner;
 class Stoppable;
 class WtsConsoleObserver;
 
-#if defined(REMOTING_MULTI_PROCESS)
-class DaemonProcess;
-#else  // !defined(REMOTING_MULTI_PROCESS)
-class WtsSessionProcessLauncher;
-#endif  // !defined(REMOTING_MULTI_PROCESS)
-
 class HostService : public WtsConsoleMonitor {
  public:
   static HostService* GetInstance();
 
   // This function parses the command line and selects the action routine.
   bool InitWithCommandLine(const CommandLine* command_line);
 
   // Invoke the choosen action routine.
   int Run();
 
@@ skipping 69 matching lines @@
 
   // Singleton.
   friend struct DefaultSingletonTraits<HostService>;
 
   DISALLOW_COPY_AND_ASSIGN(HostService);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_WIN_HOST_SERVICE_H_