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

chrome/browser/printing/print_view_manager.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/printing/print_view_manager.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/printing/print_job.h"
@@ skipping 70 matching lines @@
 }
 
 bool PrintViewManager::PrintNow() {
   return PrintNowInternal(new PrintMsg_PrintPages(routing_id()));
 }
 
 bool PrintViewManager::PrintForSystemDialogNow() {
   return PrintNowInternal(new PrintMsg_PrintForSystemDialog(routing_id()));
 }
 
+bool PrintViewManager::AdvancedPrintNow() {
+  printing::PrintPreviewTabController* tab_controller =
+      printing::PrintPreviewTabController::GetInstance();
+  if (!tab_controller)
+    return false;
+  TabContents* print_preview_tab =
+      tab_controller->GetPrintPreviewForTab(tab_contents());
+  if (print_preview_tab) {
+    // Preview tab exist for current tab or current tab is preview tab.
+    if (!print_preview_tab->web_ui())
+      return false;
+    PrintPreviewUI* print_preview_ui =
+        static_cast<PrintPreviewUI*>(print_preview_tab->web_ui());
+    print_preview_ui->OnShowSystemDialog();
+    return true;
+  } else {
+    return PrintNow();
+  }
+}
+
 bool PrintViewManager::PrintPreviewNow() {
   return PrintNowInternal(new PrintMsg_InitiatePrintPreview(routing_id()));
 }
 
 void PrintViewManager::PreviewPrintingRequestCancelled() {
   if (!tab_contents())
     return;
   RenderViewHost* rvh = tab_contents()->render_view_host();
   rvh->Send(new PrintMsg_PreviewPrintingRequestCancelled(rvh->routing_id()));
 }
@@ skipping 411 matching lines @@
 }
 
 bool PrintViewManager::PrintNowInternal(IPC::Message* message) {
   // Don't print / print preview interstitials.
   if (tab_contents()->showing_interstitial_page())
     return false;
   return Send(message);
 }
 
 }  // namespace printing