Persist download interrupt reason, both target and current paths, and url_chain.

content/public/test/mock_download_manager.cc

Index: content/public/test/mock_download_manager.cc
diff --git a/content/public/test/mock_download_manager.cc b/content/public/test/mock_download_manager.cc
index 64349fdfcba4c713b01c15f8d6903f855dd97f52..8df607788752f846bd6ebdbc9da73e01de0a4872 100644
--- a/content/public/test/mock_download_manager.cc
+++ b/content/public/test/mock_download_manager.cc
@@ -22,4 +22,21 @@ DownloadItem* MockDownloadManager::StartDownload(
   return MockStartDownload(info.get(), stream.get());
 }
 
+DownloadItem* MockDownloadManager::CreateDownloadItem(
+    const FilePath& current_path,
+    const FilePath& target_path,
+    const std::vector<GURL>& url_chain,
+    const GURL& referrer_url,
+    const base::Time& start_time,
+    const base::Time& end_time,
+    int64 received_bytes,
+    int64 total_bytes,
+    DownloadItem::DownloadState state,
+    DownloadInterruptReason interrupt_reason,
+    bool opened) {
+  return MockCreateDownloadItem(
+      target_path, url_chain, referrer_url, start_time, end_time,
+      received_bytes, total_bytes, state, interrupt_reason, opened);
+}
+
 }  // namespace content