On Windows ASH ensure that we get the display created for the root window serving ASH.

chrome/browser/ui/ash/ash_init.cc

 // 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.
 
 #include "chrome/browser/ui/ash/ash_init.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accelerometer/accelerometer_controller.h"
 #include "ash/ash_switches.h"
 #include "ash/high_contrast/high_contrast_controller.h"
@@ skipping 87 matching lines @@
   }
 #endif
   ash::Shell::GetPrimaryRootWindow()->GetHost()->Show();
 }
 
 void CloseAsh() {
   if (ash::Shell::HasInstance())
     ash::Shell::DeleteInstance();
 }
 
+#if defined(OS_WIN)
+bool IsAshProcess() {
+  return CommandLine::ForCurrentProcess()->HasSwitch(switches::kViewerConnect);
+}
+#endif
+
 }  // namespace chrome