Added Chrome profile option in registry.

cloud_print/virtual_driver/virtual_driver_switches.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 CLOUD_PRINT_VIRTUAL_DRIVER_VIRTUAL_DRIVER_SWITCHES_H_
 #define CLOUD_PRINT_VIRTUAL_DRIVER_VIRTUAL_DRIVER_SWITCHES_H_
 #pragma once
 
 namespace switches {
 // These constants are duplicated from chrome/common/chrome_switches.cc
 // in order to avoid dependency problems.
 // TODO(abodenha@chromium.org) Reunify them in some sensible manner.
 // Bug: www.crbug.com/88991
 
+// Location of Chrome user profile. Optional.
+extern const char kCloudPrintUserDataDir[];
+
 // Used with kCloudPrintFile.  Tells Chrome to delete the file when
 // finished displaying the print dialog.
 extern const char kCloudPrintDeleteFile[];
 
 // Tells chrome to display the cloud print dialog and upload the
 // specified file for printing.
 extern const char kCloudPrintFile[];
 
 // Used with kCloudPrintFile to specify a title for the resulting print
 // job.
 extern const char kCloudPrintJobTitle[];
 
 // Specifies the mime type to be used when uploading data from the
 // file referenced by cloud-print-file.
 // Defaults to "application/pdf" if unspecified.
 extern const char kCloudPrintFileType[];
 
 // Used with kCloudPrintFile to specify a JSON print ticket for the resulting
 // print job.
 // Defaults to null if unspecified.
 extern const char kCloudPrintPrintTicket[];
 }  // namespace switches
 
 #endif  // CLOUD_PRINT_VIRTUAL_DRIVER_VIRTUAL_DRIVER_SWITCHES_H_