Cancel prerenders for pages that call window.print()

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 149 matching lines @@
                     metafile.release(),
                     params.actual_shrink,
                     params.page_size,
                     params.content_area,
                     params.has_visible_overlays);
 
   ShouldQuitFromInnerMessageLoop();
 }
 
 void PrintViewManager::OnPrintingFailed(int cookie) {
-  scoped_refptr<PrinterQuery> printer_query;
-  g_browser_process->print_job_manager()->PopPrinterQuery(cookie,
-                                                          &printer_query);
-  if (printer_query.get()) {
-    BrowserThread::PostTask(
-        BrowserThread::IO, FROM_HERE,
-        NewRunnableMethod(printer_query.get(),
-                          &printing::PrinterQuery::StopWorker));
-  }
-
+  g_browser_process->print_job_manager()->PopAndStopPrinterQuery(cookie);
   NotificationService::current()->Notify(
       NotificationType::PRINT_JOB_RELEASED,
       Source<TabContents>(tab_contents()),
       NotificationService::NoDetails());
 }
 
 bool PrintViewManager::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PrintViewManager, message)
     IPC_MESSAGE_HANDLER(PrintHostMsg_DidGetPrintedPagesCount,
@@ skipping 266 matching lines @@
     return false;
   }
 
   // Settings are already loaded. Go ahead. This will set
   // print_job_->is_job_pending() to true.
   print_job_->StartPrinting();
   return true;
 }
 
 }  // namespace printing