Introducing a net::GenerateMimeMultipartBoundary helper.

chrome/common/cloud_print/cloud_print_helpers.cc

Index: chrome/common/cloud_print/cloud_print_helpers.cc
diff --git a/chrome/common/cloud_print/cloud_print_helpers.cc b/chrome/common/cloud_print/cloud_print_helpers.cc
index e11376c8896e058d4d553c9744f72f8588200401..a596c0e76eeaa99a9f9959ba5ff9d49afe37a6a5 100644
--- a/chrome/common/cloud_print/cloud_print_helpers.cc
+++ b/chrome/common/cloud_print/cloud_print_helpers.cc
@@ -207,13 +207,6 @@ std::string GetMultipartMimeType(const std::string& mime_boundary) {
   return std::string("multipart/form-data; boundary=") + mime_boundary;
 }
 
-// Create a MIME boundary marker (27 '-' characters followed by 16 hex digits).
-void CreateMimeBoundaryForUpload(std::string* out) {
-  int r1 = base::RandInt(0, std::numeric_limits<int32_t>::max());
-  int r2 = base::RandInt(0, std::numeric_limits<int32_t>::max());
-  base::SStringPrintf(out, "---------------------------%08X%08X", r1, r2);
-}
-
 std::string GetHashOfPrinterTags(const PrinterTags& printer_tags) {
   return HashPrinterTags(PreparePrinterTags(printer_tags));
 }