PrintPreview:[MAC] Added "Open PDF In Preview" option to open the pdf in native preview app.

chrome/browser/ui/webui/print_preview_handler.cc

 // 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.
 
 #include "chrome/browser/ui/webui/print_preview_handler.h"
 
 #include <ctype.h>
 
 #include <string>
 #include <vector>
@@ skipping 387 matching lines @@
 
   // Storing last used margin settings.
   int margin_type;
   if (!settings->GetInteger(printing::kSettingMarginsType, &margin_type))
     margin_type = printing::DEFAULT_MARGINS;
   last_used_margins_type_ = static_cast<printing::MarginType>(margin_type);
 
   bool print_to_pdf = false;
   settings->GetBoolean(printing::kSettingPrintToPDF, &print_to_pdf);
 
+  bool open_pdf_in_preview = false;
+#if defined(OS_MACOSX)
+  open_pdf_in_preview = settings->HasKey(printing::kSettingOpenPDFInPreview);
+#endif
+
   settings->SetBoolean(printing::kSettingHeaderFooterEnabled, false);
 
   bool is_cloud_printer = settings->HasKey(printing::kSettingCloudPrintId);
   bool is_cloud_dialog = false;
   settings->GetBoolean(printing::kSettingCloudPrintDialog, &is_cloud_dialog);
-  if (is_cloud_printer) {
+  if (is_cloud_printer && !open_pdf_in_preview) {
     std::string print_ticket;
     args->GetString(1, &print_ticket);
     SendCloudPrintJob(*settings, print_ticket);
-  } else if (print_to_pdf) {
+  } else if (print_to_pdf && !open_pdf_in_preview) {
     HandlePrintToPdf(*settings);
-  } else if (is_cloud_dialog) {
+  } else if (is_cloud_dialog && !open_pdf_in_preview) {
     HandlePrintWithCloudPrint();
   } else {
     ReportPrintSettingsStats(*settings);
     ReportUserActionHistogram(PRINT_TO_PRINTER);
     UMA_HISTOGRAM_COUNTS("PrintPreview.PageCount.PrintToPrinter",
                          GetPageCountFromSettingsDictionary(*settings));
 
     // This tries to activate the initiator tab as well, so do not clear the
     // association with the initiator tab yet.
     HidePreviewTab();
@@ skipping 438 matching lines @@
     return;
 
   // We no longer require the initiator tab details. Remove those details
   // associated with the preview tab to allow the initiator tab to create
   // another preview tab.
   printing::PrintPreviewTabController* tab_controller =
       printing::PrintPreviewTabController::GetInstance();
   if (tab_controller)
     tab_controller->EraseInitiatorTabInfo(preview_tab_wrapper());
 }