Fixed the racy code around the message-only window in base::MessagePumpForUI on Windows.

remoting/host/win/host_service.cc

Index: remoting/host/win/host_service.cc
diff --git a/remoting/host/win/host_service.cc b/remoting/host/win/host_service.cc
index 42a8ed070b0fc6c430ac49c8565c2bd536bc4773..679603aef1813fd44b788e2561ac872c664d209c 100644
--- a/remoting/host/win/host_service.cc
+++ b/remoting/host/win/host_service.cc
@@ -385,7 +385,7 @@ int HostService::RunInConsole() {
   }
 
   // Create a window for receiving session change notifications.
-  win::MessageWindow window;
+  base::win::MessageWindow window;
   if (!window.Create(this)) {
     LOG_GETLASTERROR(ERROR)
         << "Failed to create the session notification window";