Downloads: Added transient flag to download item and download database

content/browser/download/mock_download_item_impl.cc

 // Copyright 2017 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/mock_download_item_impl.h"
 
 namespace content {
 
 MockDownloadItemImpl::MockDownloadItemImpl(
     DownloadItemImplDelegate* delegate,
@@ skipping 15 matching lines @@
                        std::string(),
                        std::string(),
                        0,
                        0,
                        std::string(),
                        DownloadItem::COMPLETE,
                        DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
                        DOWNLOAD_INTERRUPT_REASON_NONE,
                        false,
                        base::Time(),
+                       true,
                        received_slices,
                        net::NetLogWithSource()) {}
 
 MockDownloadItemImpl::MockDownloadItemImpl(DownloadItemImplDelegate* delegate)
     : MockDownloadItemImpl(delegate, DownloadItem::ReceivedSlices()) {}
 
 MockDownloadItemImpl::~MockDownloadItemImpl() = default;
 
 }  // namespace content