Reduce unnecessary download interruptions due to parallel requests

content/browser/download/download_job.cc

Index: content/browser/download/download_job.cc
diff --git a/content/browser/download/download_job.cc b/content/browser/download/download_job.cc
index cbdf35f786da9fb037504e30ca7d8601202d0ad9..66b49c07e8813a53c8dc10ddee44b1138c1af603 100644
--- a/content/browser/download/download_job.cc
+++ b/content/browser/download/download_job.cc
@@ -28,11 +28,6 @@ void DownloadJob::StartDownload() const {
   download_item_->StartDownload();
 }
 
-void DownloadJob::Interrupt(DownloadInterruptReason reason) {
-  download_item_->InterruptAndDiscardPartialState(reason);
-  download_item_->UpdateObservers();
-}
-
 bool DownloadJob::AddByteStream(std::unique_ptr<ByteStreamReader> stream_reader,
                                 int64_t offset,
                                 int64_t length) {
@@ -51,17 +46,6 @@ bool DownloadJob::AddByteStream(std::unique_ptr<ByteStreamReader> stream_reader,
   return true;
 }
 
-void DownloadJob::SetPotentialFileLength(int64_t length) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  DownloadFile* download_file = download_item_->download_file_.get();
-  if (download_file) {
-    BrowserThread::PostTask(
-        BrowserThread::FILE, FROM_HERE,
-        base::Bind(&DownloadFile::SetPotentialFileLength,
-                   base::Unretained(download_file), length));
-  }
-}
-
 void DownloadJob::CancelRequestWithOffset(int64_t offset) {}
 
 bool DownloadJob::IsParallelizable() const {