Print Preview: close dialog when system dialog is open (Win)

chrome/browser/ui/webui/print_preview/print_preview_handler.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 CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 414 matching lines @@
   // Callback ID to be used to notify UI that privet search is finished.
   std::string privet_search_callback_id_;
 
   // Callback ID to be used to notify UI that privet printing is finished.
   std::string privet_print_callback_id_;
 #endif
 
   // Callback ID to be used to notify UI that PDF file selection has finished.
   std::string pdf_callback_id_;
 
-  bool printing_started_ = false;
+  // Print settings to use in the print request.

[Lei Zhang, 2017/06/27 21:58:48]

Mention this is for a local print request?

[rbpotter, 2017/06/28 00:18:58]

Done.

+  std::unique_ptr<base::DictionaryValue> settings_;
 
   // Proxy for calls to the print backend.  Lazily initialized since web_ui() is
   // not available at construction time.
   std::unique_ptr<printing::PrinterBackendProxy> printer_backend_proxy_;
 
   base::WeakPtrFactory<PrintPreviewHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_