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

chrome/browser/history/history.h

Index: chrome/browser/history/history.h
diff --git a/chrome/browser/history/history.h b/chrome/browser/history/history.h
index 6c5cf34b2f9b8f520d353448544df6405ae78c67..5413289cc9b7da7d48fe9b367d0b755e0bae8472 100644
--- a/chrome/browser/history/history.h
+++ b/chrome/browser/history/history.h
@@ -493,9 +493,11 @@ class HistoryService : public CancelableRequestProvider,
   // the database with no need for a callback.
   void UpdateDownload(const content::DownloadPersistentStoreInfo& data);
 
-  // Called to update the history service about the path of a download.
+  // Called to update the history service about the paths of a download.
   // This is a 'fire and forget' query.
-  void UpdateDownloadPath(const FilePath& path, int64 db_handle);
+  void UpdateDownloadPath(const FilePath& target_path,
+                          const FilePath& current_path,
+                          int64 db_handle);
 
   // Permanently remove a download from the history system. This is a 'fire and
   // forget' operation.