Use document from preview for System Dialog printing on Windows.

printing/print_job_constants.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 PRINTING_PRINT_JOB_CONSTANTS_H_
 #define PRINTING_PRINT_JOB_CONSTANTS_H_
 
 #include "build/build_config.h"
 #include "printing/printing_export.h"
 
@@ skipping 45 matching lines @@
 PRINTING_EXPORT extern const char kSettingPrintableAreaHeight[];
 PRINTING_EXPORT extern const char kSettingPrintableAreaWidth[];
 PRINTING_EXPORT extern const char kSettingPrintableAreaX[];
 PRINTING_EXPORT extern const char kSettingPrintableAreaY[];
 PRINTING_EXPORT extern const char kSettingPrinterDescription[];
 PRINTING_EXPORT extern const char kSettingPrinterName[];
 PRINTING_EXPORT extern const char kSettingPrinterOptions[];
 PRINTING_EXPORT extern const char kSettingTicket[];
 PRINTING_EXPORT extern const char kSettingShouldPrintBackgrounds[];
 PRINTING_EXPORT extern const char kSettingShouldPrintSelectionOnly[];
+PRINTING_EXPORT extern const char kSettingShowSystemDialog[];
 
 PRINTING_EXPORT extern const int FIRST_PAGE_INDEX;
 PRINTING_EXPORT extern const int COMPLETE_PREVIEW_DOCUMENT_INDEX;
 PRINTING_EXPORT extern const char kSettingOpenPDFInPreview[];
 
 #if defined (USE_CUPS)
 // Printer color models
 PRINTING_EXPORT extern const char kBlack[];
 PRINTING_EXPORT extern const char kCMYK[];
 PRINTING_EXPORT extern const char kKCMY[];
@@ skipping 62 matching lines @@
   DEFAULT_MARGINS,  // Default varies depending on headers being enabled or not
   NO_MARGINS,
   PRINTABLE_AREA_MARGINS,
   CUSTOM_MARGINS,
   MARGIN_TYPE_LAST = CUSTOM_MARGINS
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINT_JOB_CONSTANTS_H_