set content length limit if half open range request fails

content/browser/download/parallel_download_job.cc

Index: content/browser/download/parallel_download_job.cc
diff --git a/content/browser/download/parallel_download_job.cc b/content/browser/download/parallel_download_job.cc
index 6785faad990ea89293e5f8dc1ccda803a4e66e01..88a7541f8a472c6d177fd86909e965a3714317e1 100644
--- a/content/browser/download/parallel_download_job.cc
+++ b/content/browser/download/parallel_download_job.cc
@@ -117,6 +117,12 @@ void ParallelDownloadJob::OnServerResponseError(
   // TODO(xingliu): Consider to let the original request to cover the full
   // content if the sub-requests get invalid response. Consider retry on certain
   // error.
+  if (worker->length() == DownloadSaveInfo::kLengthFullContent &&
+      reason ==
+          DownloadInterruptReason::DOWNLOAD_INTERRUPT_REASON_SERVER_NO_RANGE) {
+    SetPotentialFileLength(worker->offset());
+    return;
+  }
   DownloadJob::Interrupt(reason);
 }