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

chrome/browser/download/download_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_DOWNLOAD_DOWNLOAD_HISTORY_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_HISTORY_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 33 matching lines @@
                                   const GURL& referrer_url,
                                   const VisitedBeforeDoneCallback& callback);
 
   // Adds a new entry for a download to the history database.
   void AddEntry(content::DownloadItem* download_item,
                 const HistoryService::DownloadCreateCallback& callback);
 
   // 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);
 
   // Removes download-related history entries in the given time range.
   void RemoveEntriesBetween(const base::Time remove_begin,
                             const base::Time remove_end);
 
   // Returns a new unique database handle which will not collide with real ones.
   int64 GetNextFakeDbHandle();
@@ skipping 17 matching lines @@
 
   CancelableRequestConsumer history_consumer_;
 
   // The outstanding requests made by CheckVisitedReferrerBefore().
   VisitedBeforeRequestsMap visited_before_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadHistory);
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_HISTORY_H_