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

chrome/browser/history/download_database.h

Index: chrome/browser/history/download_database.h
diff --git a/chrome/browser/history/download_database.h b/chrome/browser/history/download_database.h
index f5e18bdfbbf052c255c5a7aec5f5884b0b4143b8..45fd78395c7f362aefa9be344fd39ed1cbb2fe58 100644
--- a/chrome/browser/history/download_database.h
+++ b/chrome/browser/history/download_database.h
@@ -42,8 +42,10 @@ class DownloadDatabase {
   // to select the row in the database table to update.
   bool UpdateDownload(const content::DownloadPersistentStoreInfo& data);
 
-  // Update the path of one download. Returns true if successful.
-  bool UpdateDownloadPath(const FilePath& path, DownloadID db_handle);
+  // Update the paths of one download. Returns true if successful.
+  bool UpdateDownloadPath(const FilePath& target_path,
+                          const FilePath& current_path,
+                          DownloadID db_handle);
 
   // Fixes state of the download entries. Sometimes entries with IN_PROGRESS
   // state are not updated during browser shutdown (particularly when crashing).
@@ -75,6 +77,10 @@ class DownloadDatabase {
   // database. See http://crbug.com/140687
   bool MigrateDownloadsState();
 
+  // Returns true if able to successful add the last interrupt reason and the
+  // two target paths to downloads.
+  bool MigrateReasonAndPaths();
+
   // Creates the downloads table if needed.
   bool InitDownloadTable();