Don't create parallel request if download is about to complete

content/browser/download/download_stats.h

Index: content/browser/download/download_stats.h
diff --git a/content/browser/download/download_stats.h b/content/browser/download/download_stats.h
index e4da2f4d2d2f3584d67584610aad98635639909a..a7d706a9155af47e2b638b52ea6688eb3a17e199 100644
--- a/content/browser/download/download_stats.h
+++ b/content/browser/download/download_stats.h
@@ -174,6 +174,9 @@ enum class ParallelDownloadCreationEvent {
   // The HTTP connection type does not meet the requirement.
   FALLBACK_REASON_CONNECTION_TYPE,
 
+  // The remaining time does not meet the requirement.
+  FALLBACK_REASON_REMAINING_TIME,
+
   // Last entry of the enum.
   COUNT,
 };