chromeos: Move files in //ash/common to //ash, part 1

ash/system/network/tray_vpn.h

Index: ash/system/network/tray_vpn.h
diff --git a/ash/common/system/chromeos/network/tray_vpn.h b/ash/system/network/tray_vpn.h
similarity index 81%
rename from ash/common/system/chromeos/network/tray_vpn.h
rename to ash/system/network/tray_vpn.h
index 29bf35ef2a84ff0aca527add6f17770a2ec3791c..93d361d5fe238017cfc3c4298200c93426e83a3b 100644
--- a/ash/common/system/chromeos/network/tray_vpn.h
+++ b/ash/system/network/tray_vpn.h
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_SYSTEM_CHROMEOS_NETWORK_TRAY_VPN_H_
-#define ASH_COMMON_SYSTEM_CHROMEOS_NETWORK_TRAY_VPN_H_
+#ifndef ASH_SYSTEM_NETWORK_TRAY_VPN_H_
+#define ASH_SYSTEM_NETWORK_TRAY_VPN_H_
 
 #include <memory>
 
-#include "ash/common/system/chromeos/network/tray_network_state_observer.h"
-#include "ash/common/system/tray/system_tray_item.h"
+#include "ash/system/network/tray_network_state_observer.h"
+#include "ash/system/tray/system_tray_item.h"
 #include "base/macros.h"
 
 namespace ash {
@@ -48,4 +48,4 @@ class TrayVPN : public SystemTrayItem,
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SYSTEM_CHROMEOS_NETWORK_TRAY_VPN_H_
+#endif  // ASH_SYSTEM_NETWORK_TRAY_VPN_H_