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

content/browser/download/parallel_download_utils.cc

Index: content/browser/download/parallel_download_utils.cc
diff --git a/content/browser/download/parallel_download_utils.cc b/content/browser/download/parallel_download_utils.cc
index 5fe904367a0c4946e2ec3a22dab17e89fe88938b..cf47408ed822ae129476b4f9c9e32ee04cacdc97 100644
--- a/content/browser/download/parallel_download_utils.cc
+++ b/content/browser/download/parallel_download_utils.cc
@@ -33,6 +33,15 @@ const int kParallelRequestCount = 2;
 // parallel requests after response of the original request is handled.
 const char kParallelRequestDelayFinchKey[] = "parallel_request_delay";
 
+// Finch parameter key value for the remaining time in seconds that is required
+// to send parallel requests.
+const char kParallelRequestRemainingTimeFinchKey[] =
+    "parallel_request_remaining_time";
+
+// The default remaining download time in seconds required for parallel request
+// creation.
+const int kDefaultRemainingTimeInSeconds = 10;
+
 // TODO(qinmin): replace this with a comparator operator in
 // DownloadItem::ReceivedSlice.
 bool compareReceivedSlices(const DownloadItem::ReceivedSlice& lhs,
@@ -141,6 +150,15 @@ base::TimeDelta GetParallelRequestDelayConfig() {
              : base::TimeDelta::FromMilliseconds(0);
 }
 
+base::TimeDelta GetParallelRequestRemainingTimeConfig() {
+  std::string finch_value = base::GetFieldTrialParamValueByFeature(
+      features::kParallelDownloading, kParallelRequestRemainingTimeFinchKey);
+  int time_in_seconds = 0;
+  return base::StringToInt(finch_value, &time_in_seconds)
+             ? base::TimeDelta::FromSeconds(time_in_seconds)
+             : base::TimeDelta::FromSeconds(kDefaultRemainingTimeInSeconds);
+}
+
 void DebugSlicesInfo(const DownloadItem::ReceivedSlices& slices) {
   DVLOG(1) << "Received slices size : " << slices.size();
   for (const auto& it : slices) {