Cancel prerenders for pages that call window.print()

chrome/browser/printing/print_job_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_job_manager.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/printing/print_job.h"
 #include "chrome/browser/printing/printer_query.h"
@@ skipping 53 matching lines @@
   current_jobs_.clear();
 }
 
 void PrintJobManager::QueuePrinterQuery(PrinterQuery* job) {
   base::AutoLock lock(lock_);
   DCHECK(job);
   queued_queries_.push_back(make_scoped_refptr(job));
   DCHECK(job->is_valid());
 }
 
+void PrintJobManager::PopAndStopPrinterQuery(int document_cookie) {
+  // Shamelessly ripped from PrintViewManager to clean up the print worker.

[cbentzel, 2011/05/13 15:35:33]

This comment is likely not needed anymore. 

[dominich, 2011/05/13 16:25:08]

Done.

+  scoped_refptr<PrinterQuery> printer_query;
+  PopPrinterQuery(document_cookie, &printer_query);
+  if (printer_query.get()) {
+    BrowserThread::PostTask(
+        BrowserThread::IO, FROM_HERE,
+        NewRunnableMethod(printer_query.get(),
+                          &PrinterQuery::StopWorker));
+  }
+}
+
 void PrintJobManager::PopPrinterQuery(int document_cookie,
                                       scoped_refptr<PrinterQuery>* job) {
   base::AutoLock lock(lock_);
   for (PrinterQueries::iterator itr = queued_queries_.begin();
        itr != queued_queries_.end();
        ++itr) {
     PrinterQuery* current_query = *itr;
     if (current_query->cookie() == document_cookie &&
         !current_query->is_callback_pending()) {
       *job = current_query;
@@ skipping 73 matching lines @@
       break;
     }
     default: {
       NOTREACHED();
       break;
     }
   }
 }
 
 }  // namespace printing