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

chrome/browser/download/download_history.h

Index: chrome/browser/download/download_history.h
diff --git a/chrome/browser/download/download_history.h b/chrome/browser/download/download_history.h
index 1a831ed706048439d371eb0bdce1c48ce5b11a4c..2a285836bea9f6ca60529c121204b33fcde80b5a 100644
--- a/chrome/browser/download/download_history.h
+++ b/chrome/browser/download/download_history.h
@@ -51,9 +51,10 @@ class DownloadHistory {
   // Updates the history entry for |download_item|.
   void UpdateEntry(content::DownloadItem* download_item);
 
-  // Updates the download path for |download_item| to |new_path|.
+  // Updates the download paths for |download_item|.
   void UpdateDownloadPath(content::DownloadItem* download_item,
-                          const FilePath& new_path);
+                          const FilePath& target_path,
+                          const FilePath& current_path);
 
   // Removes |download_item| from the history database.
   void RemoveEntry(content::DownloadItem* download_item);