Update the received slices vector when stream is written to disk

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 5846e1eb8ee58005c561380ed9f0721364a483e1..52eea05e4132980d7215861b3fe77df214b982d4 100644
--- a/content/browser/download/parallel_download_utils.cc
+++ b/content/browser/download/parallel_download_utils.cc
@@ -8,6 +8,15 @@
 
 namespace content {
 
+namespace {
+
+bool compareReceivedSlices(const DownloadItem::ReceivedSlice& lhs,
+                           const DownloadItem::ReceivedSlice& rhs) {
+  return lhs.offset < rhs.offset;
+}
+
+}  // namespace
+
 DownloadItem::ReceivedSlice FindNextSliceToDownload(
     const std::vector<DownloadItem::ReceivedSlice>& received_slices) {
   if (received_slices.empty())
@@ -38,4 +47,14 @@ DownloadItem::ReceivedSlice FindNextSliceToDownload(
   return DownloadItem::ReceivedSlice(offset, remaining_bytes);
 }
 
+int AddReceivedSliceToSortedArray(
+    const DownloadItem::ReceivedSlice& new_slice,
+    std::vector<DownloadItem::ReceivedSlice>& received_slices) {
+  std::vector<DownloadItem::ReceivedSlice>::iterator it =
+      std::upper_bound(received_slices.begin(), received_slices.end(),
+                       new_slice, compareReceivedSlices);
+  it = received_slices.emplace(it, new_slice);
+  return std::distance(received_slices.begin(), it);
+}
+
 }  // namespace content