Revert 138168 - net: Fix a regression that broke file uploading with http authentication

net/base/upload_data.cc

Index: net/base/upload_data.cc
===================================================================
--- net/base/upload_data.cc	(revision 138174)
+++ net/base/upload_data.cc	(working copy)
@@ -114,20 +114,6 @@
   return GetContentLength() - offset_;
 }
 
-void UploadData::Element::ResetOffset() {
-  offset_ = 0;
-
-  // Delete the file stream if already opened, so we can reread the file from
-  // the beginning.
-  if (file_stream_) {
-    // Temporarily allow until fix: http://crbug.com/72001.
-    base::ThreadRestrictions::ScopedAllowIO allow_io;
-    file_stream_->CloseSync();
-    delete file_stream_;
-    file_stream_ = NULL;
-  }
-}
-
 FileStream* UploadData::Element::OpenFileStream() {
   scoped_ptr<FileStream> file(new FileStream(NULL));
   int64 rv = file->OpenSync(