Clear the received slices in DownloadItemImpl when etag changed.

content/browser/download/download_manager_impl.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.
 
 #include "content/browser/download/download_manager_impl.h"
 
 #include <iterator>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 353 matching lines @@
     delegate_->GetSaveDir(GetBrowserContext(), &website_save_directory,
                           &default_download_directory, &skip_dir_check);
   }
 
   std::unique_ptr<DownloadFile> download_file;
 
   if (info->result == DOWNLOAD_INTERRUPT_REASON_NONE) {
     DCHECK(stream.get());
     download_file.reset(file_factory_->CreateFile(
         std::move(info->save_info), default_download_directory,
-        std::move(stream), download->GetReceivedSlices(),
-        download->GetNetLogWithSource(),
+        std::move(stream), download->GetNetLogWithSource(),
         download->DestinationObserverAsWeakPtr()));
   }
   // It is important to leave info->save_info intact in the case of an interrupt
   // so that the DownloadItem can salvage what it can out of a failed resumption
   // attempt.
 
   download->Start(std::move(download_file), std::move(info->request_handle),
                   *info);
 
   // For interrupted downloads, Start() will transition the state to
@@ skipping 362 matching lines @@
   if (delegate_)
     delegate_->OpenDownload(download);
 }
 
 void DownloadManagerImpl::ShowDownloadInShell(DownloadItemImpl* download) {
   if (delegate_)
     delegate_->ShowDownloadInShell(download);
 }
 
 }  // namespace content