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

chrome/browser/printing/print_view_manager.h

Index: chrome/browser/printing/print_view_manager.h
diff --git a/chrome/browser/printing/print_view_manager.h b/chrome/browser/printing/print_view_manager.h
index 9232579b5ea257ac127f91b18fa941e54ed2c395..2b0b37a2791e3b07bd17554642afaa6c42bac0a9 100644
--- a/chrome/browser/printing/print_view_manager.h
+++ b/chrome/browser/printing/print_view_manager.h
@@ -46,6 +46,11 @@ class PrintViewManager : public NotificationObserver,
   // 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