Ensure that printer job handler is stopped and task_in_progress_ is reset in OnAuthError

chrome/service/cloud_print/printer_job_handler.cc

Index: chrome/service/cloud_print/printer_job_handler.cc
diff --git a/chrome/service/cloud_print/printer_job_handler.cc b/chrome/service/cloud_print/printer_job_handler.cc
index d0d693c6992c9fec6fed262af3b02b9d4902c90c..b34de253e3aa250659218b7c0f7932d620272923 100644
--- a/chrome/service/cloud_print/printer_job_handler.cc
+++ b/chrome/service/cloud_print/printer_job_handler.cc
@@ -176,6 +176,8 @@ bool PrinterJobHandler::OnJobCompleted(JobStatusUpdater* updater) {
 }
 
 void PrinterJobHandler::OnAuthError() {
+  MessageLoop::current()->PostTask(
+      FROM_HERE, base::Bind(&PrinterJobHandler::Stop, this));
   if (delegate_)
     delegate_->OnAuthError();
 }