Introducing a net::GenerateMimeMultipartBoundary helper.

chrome/service/cloud_print/cloud_print_connector.cc

Index: chrome/service/cloud_print/cloud_print_connector.cc
diff --git a/chrome/service/cloud_print/cloud_print_connector.cc b/chrome/service/cloud_print/cloud_print_connector.cc
index 731d9c907738d188853e093e1122f9b42509f57b..1bec7b0817f105fa48a43a8165ee388445669871 100644
--- a/chrome/service/cloud_print/cloud_print_connector.cc
+++ b/chrome/service/cloud_print/cloud_print_connector.cc
@@ -362,8 +362,7 @@ void CloudPrintConnector::ReportUserMessage(const std::string& message_id,
                                             const std::string& failure_msg) {
   // This is a fire and forget type of function.
   // Result of this request will be ignored.
-  std::string mime_boundary;
-  CreateMimeBoundaryForUpload(&mime_boundary);
+  std::string mime_boundary = net::GenerateMimeMultipartBoundary();
   GURL url = GetUrlForUserMessage(settings_.server_url(), message_id);
   std::string post_data;
   net::AddMultipartValueForUpload(kMessageTextValue, failure_msg, mime_boundary,
@@ -609,8 +608,7 @@ void CloudPrintConnector::OnReceivePrinterCaps(
   const printing::PrinterBasicInfo& info = pending_tasks_.front().printer_info;
   DCHECK(IsSamePrinter(info.printer_name, printer_name));
 
-  std::string mime_boundary;
-  CreateMimeBoundaryForUpload(&mime_boundary);
+  std::string mime_boundary = net::GenerateMimeMultipartBoundary();
   std::string post_data;
 
   net::AddMultipartValueForUpload(kProxyIdValue,