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

chrome/browser/history/history.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_HISTORY_HISTORY_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 475 matching lines @@
 
   // Begins a request to clean up entries that has been corrupted (because of
   // the crash, for example).
   void CleanUpInProgressEntries();
 
   // Called to update the history service about the current state of a download.
   // This is a 'fire and forget' query, so just pass the relevant state info to
   // 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.
   void RemoveDownload(int64 db_handle);
 
   // Permanently removes all completed download from the history system within
   // the specified range. This function does not delete downloads that are in
   // progress or in the process of being cancelled. This is a 'fire and forget'
   // operation. You can pass is_null times to get unbounded time in either or
   // both directions.
@@ skipping 614 matching lines @@
   // TODO(mrossetti): Move in_memory_url_index out of history_service.
   // See http://crbug.com/138321
   scoped_ptr<history::InMemoryURLIndex> in_memory_url_index_;
 
   ObserverList<history::VisitDatabaseObserver> visit_database_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryService);
 };
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_H_