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

chrome/browser/history/download_row.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_DOWNLOAD_ROW_H_
 #define CHROME_BROWSER_HISTORY_DOWNLOAD_ROW_H_
 
 #include "base/file_path.h"
 #include "base/time.h"
+#include "content/public/browser/download_interrupt_reasons.h"
 #include "content/public/browser/download_item.h"
 #include "googleurl/src/gurl.h"
 
 namespace history {
 
 // Contains the information that is stored in the download system's persistent
 // store (or refers to it). DownloadHistory uses this to communicate with the
 // DownloadDatabase through the HistoryService.
 struct DownloadRow {
   DownloadRow();
   DownloadRow(
-      const FilePath& path,
-      const GURL& url,
+      const FilePath& current_path,
+      const FilePath& target_path,
+      const std::vector<GURL>& url_chain,
       const GURL& referrer,
       const base::Time& start,
       const base::Time& end,
       int64 received,
       int64 total,
       content::DownloadItem::DownloadState download_state,
+      content::DownloadInterruptReason interrupt_reason,
       int64 handle,
       bool download_opened);
   ~DownloadRow();
 
-  // The current path to the downloaded file.
-  // TODO(benjhayden/asanka): Persist the target filename as well.
-  FilePath path;
+  // The current path to the download (potentially different from final if
+  // download is in progress or interrupted).
+  FilePath current_path;
 
-  // The URL from which we are downloading. This is the final URL after any
-  // redirection by the server for |url_chain|. Is not changed by
+  // The target path where the download will go when it's complete.
+  FilePath target_path;
+
+  // The URL redirect chain through which we are downloading.  The front
+  // is the url that the initial request went to, and the back is the
+  // url from which we ended up getting data.  This is not changed by
   // UpdateDownload().
-  GURL url;
+  std::vector<GURL> url_chain;
 
   // The URL that referred us. Is not changed by UpdateDownload().
   GURL referrer_url;
 
   // The time when the download started. Is not changed by UpdateDownload().
   base::Time start_time;
 
   // The time when the download completed.
   base::Time end_time;
 
   // The number of bytes received (so far).
   int64 received_bytes;
 
   // The total number of bytes in the download. Is not changed by
   // UpdateDownload().
   int64 total_bytes;
 
   // The current state of the download.
   content::DownloadItem::DownloadState state;
 
+  // The reason the download was interrupted, if
+  // state == DownloadItem::INTERRUPTED
+  content::DownloadInterruptReason interrupt_reason;
+
   // The handle of the download in the database. Is not changed by
   // UpdateDownload().
   int64 db_handle;
 
   // Whether this download has ever been opened from the browser.
   bool opened;
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_DOWNLOAD_ROW_H_