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

chrome/browser/history/history.cc

 // 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.
 
 // The history system runs on a background thread so that potentially slow
 // database operations don't delay the browser. This backend processing is
 // represented by HistoryBackend. The HistoryService's job is to dispatch to
 // that thread.
 //
 // Main thread                       History thread
@@ skipping 689 matching lines @@
 }
 
 // Handle updates for a particular download. This is a 'fire and forget'
 // operation, so we don't need to be called back.
 void HistoryService::UpdateDownload(
     const content::DownloadPersistentStoreInfo& data) {
   DCHECK(thread_checker_.CalledOnValidThread());
   ScheduleAndForget(PRIORITY_NORMAL, &HistoryBackend::UpdateDownload, data);
 }
 
-void HistoryService::UpdateDownloadPath(const FilePath& path,
+void HistoryService::UpdateDownloadPath(const FilePath& target_path,
+                                        const FilePath& current_path,
                                         int64 db_handle) {
   DCHECK(thread_checker_.CalledOnValidThread());
   ScheduleAndForget(PRIORITY_NORMAL, &HistoryBackend::UpdateDownloadPath,
-                    path, db_handle);
+                    target_path, current_path, db_handle);
 }
 
 void HistoryService::RemoveDownload(int64 db_handle) {
   DCHECK(thread_checker_.CalledOnValidThread());
   ScheduleAndForget(PRIORITY_NORMAL,
                     &HistoryBackend::RemoveDownload, db_handle);
 }
 
 void HistoryService::RemoveDownloadsBetween(Time remove_begin,
                                             Time remove_end) {
@@ skipping 409 matching lines @@
 }
 
 void HistoryService::ProcessDeleteDirective(
     const sync_pb::HistoryDeleteDirectiveSpecifics& delete_directive) {
   DCHECK(thread_checker_.CalledOnValidThread());
   // TODO(akalin): Actually process the delete directive.
   // TODO(akalin): Keep track of which delete directives we've already
   // processed.
   NOTREACHED();
 }