Show dialog as separate post task.

chrome/browser/printing/print_view_manager_base.cc

 // Copyright 2013 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_base.h"
 
 #include <map>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 179 matching lines @@
   ShouldQuitFromInnerMessageLoop();
 }
 
 void PrintViewManagerBase::OnPrintingFailed(int cookie) {
   if (cookie != cookie_) {
     NOTREACHED();
     return;
   }
 
 #if defined(ENABLE_FULL_PRINTING)
-  chrome::ShowPrintErrorDialog(
-      web_contents()->GetView()->GetTopLevelNativeWindow());
+  chrome::ShowPrintErrorDialog();
 #endif
 
   ReleasePrinterQuery();
 
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_PRINT_JOB_RELEASED,
       content::Source<content::WebContents>(web_contents()),
       content::NotificationService::NoDetails());
 }
 
@@ skipping 310 matching lines @@
   scoped_refptr<printing::PrinterQuery> printer_query;
   printer_query = queue_->PopPrinterQuery(cookie);
   if (!printer_query)
     return;
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&PrinterQuery::StopWorker, printer_query.get()));
 }
 
 }  // namespace printing