net: Move file operation code from UploadData to UploadDataStream

chrome_frame/plugin_url_request.cc

Index: chrome_frame/plugin_url_request.cc
diff --git a/chrome_frame/plugin_url_request.cc b/chrome_frame/plugin_url_request.cc
index a8a14c7d3df92eedec7c0ef7250beb0ab8f8eb30..cfc798b712556074e4dffb45319ad62d52610b03 100644
--- a/chrome_frame/plugin_url_request.cc
+++ b/chrome_frame/plugin_url_request.cc
@@ -43,11 +43,13 @@ bool PluginUrlRequest::Initialize(PluginUrlRequestDelegate* delegate,
     if (FAILED(hr)) {
       NOTREACHED();
     } else {
-      post_data_len_ = upload_data->GetContentLengthSync();
       upload_stream->AddRef();
       upload_stream->Initialize(upload_data);
       upload_data_.Attach(upload_stream);
       is_chunked_upload_ = upload_data->is_chunked();
+      STATSTG stat;
+      upload_stream->Stat(&stat, STATFLAG_NONAME);
+      post_data_len_ = stat.cbSize.QuadPart;
     }
   }