Make DownloadFileImpl handle multiple byte streams.

content/browser/download/download_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file contains download browser tests that are known to be runnable
 // in a pure content context.  Over time tests should be migrated here.
 
 #include <stddef.h>
 #include <stdint.h>
 #include <utility>
@@ skipping 192 matching lines @@
     const base::FilePath& default_download_directory,
     std::unique_ptr<ByteStreamReader> stream,
     const net::NetLogWithSource& net_log,
     std::unique_ptr<device::PowerSaveBlocker> power_save_blocker,
     base::WeakPtr<DownloadDestinationObserver> observer,
     base::WeakPtr<DownloadFileWithDelayFactory> owner)
     : DownloadFileImpl(std::move(save_info),
                        default_download_directory,
                        std::move(stream),
                        net_log,
+                       false,
                        observer),
       owner_(owner) {}
 
 DownloadFileWithDelay::~DownloadFileWithDelay() {}
 
 void DownloadFileWithDelay::RenameAndUniquify(
     const base::FilePath& full_path,
     const RenameCompletionCallback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
   DownloadFileImpl::RenameAndUniquify(
@@ skipping 84 matching lines @@
       std::unique_ptr<DownloadSaveInfo> save_info,
       const base::FilePath& default_downloads_directory,
       std::unique_ptr<ByteStreamReader> stream,
       const net::NetLogWithSource& net_log,
       std::unique_ptr<device::PowerSaveBlocker> power_save_blocker,
       base::WeakPtr<DownloadDestinationObserver> observer)
       : DownloadFileImpl(std::move(save_info),
                          default_downloads_directory,
                          std::move(stream),
                          net_log,
+                         false,
                          observer) {}
 
   ~CountingDownloadFile() override {
     DCHECK_CURRENTLY_ON(BrowserThread::FILE);
     active_files_--;
   }
 
   void Initialize(const InitializeCallback& callback) override {
     DCHECK_CURRENTLY_ON(BrowserThread::FILE);
     active_files_++;
@@ skipping 2317 matching lines @@
   GURL document_url =
       origin_two.GetURL("/iframe-host.html?target=" + frame_url.spec());
   DownloadItem* download = StartDownloadAndReturnItem(shell(), document_url);
   WaitForCompletion(download);
 
   EXPECT_STREQ(FILE_PATH_LITERAL("download-test.lib"),
                download->GetTargetFilePath().BaseName().value().c_str());
 }
 
 }  // namespace content