PrintPreview: Make ctrl-shift-p start the native print flow.

chrome/browser/printing/print_view_manager.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 CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
 #define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
 #pragma once
 
 #include "base/memory/ref_counted.h"
 #include "base/string16.h"
@@ skipping 28 matching lines @@
 
   // Prints the current document immediately. Since the rendering is
   // asynchronous, the actual printing will not be completed on the return of
   // this function. Returns false if printing is impossible at the moment.
   bool PrintNow();
 
   // Same as PrintNow(), but for the case where a user prints with the system
   // dialog from print preview.
   bool PrintForSystemDialogNow();
 
+  // Same as PrintNow(), but for the case where a user press "ctrl+shift+p" to
+  // show the native system dialog. This can happen from both initiator tab and
+  // preview tab.
+  bool AdvancedPrintNow();
+
   // Initiate print preview of the current document by first notifying the
   // renderer. Since this happens asynchronous, the print preview tab creation
   // will not be completed on the return of this function. Returns false if
   // print preview is impossible at the moment.
   bool PrintPreviewNow();
 
   // Handles cancelled preview printing request.
   void PreviewPrintingRequestCancelled();
 
   // Sets |observer| as the current PrintViewManagerObserver. Pass in NULL to
@@ skipping 115 matching lines @@
 
   // The document cookie of the current PrinterQuery.
   int cookie_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintViewManager);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_