Fix downloads db state=3 corruption using version=23

content/public/browser/download_persistent_store_info.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 CONTENT_PUBlIC_BROWSER_DOWNLOAD_PERSISTENT_STORE_INFO_H_
 #define CONTENT_PUBlIC_BROWSER_DOWNLOAD_PERSISTENT_STORE_INFO_H_
 
 #include "base/file_path.h"
 #include "base/time.h"
 #include "content/common/content_export.h"
+#include "content/public/browser/download_item.h"
 #include "googleurl/src/gurl.h"
 
 namespace content {
 
 // Contains the information that is stored in the download system's persistent
 // store (or refers to it).  Managed by the DownloadItem.  When used to create a
 // history entry, all fields except for |db_handle| are set by DownloadItem and
 // read by DownloadDatabase.  When used to update a history entry, DownloadItem
 // sets all fields, but DownloadDatabase only reads |end_time|,
 // |received_bytes|, |state|, and |opened|, and uses |db_handle| to select the
 // row in the database table to update.  When used to load DownloadItems from
 // the history, all fields except |referrer_url| are set by the DownloadDatabase
 // and read by the DownloadItem.
 struct CONTENT_EXPORT DownloadPersistentStoreInfo {
   DownloadPersistentStoreInfo();
   DownloadPersistentStoreInfo(const FilePath& path,
                               const GURL& url,
                               const GURL& referrer,
                               const base::Time& start,
                               const base::Time& end,
                               int64 received,
                               int64 total,
-                              int32 download_state,
+                              DownloadItem::DownloadState download_state,
                               int64 handle,
                               bool download_opened);
   ~DownloadPersistentStoreInfo();  // For linux-clang.
 
   // The final path where the download is saved.
   FilePath 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 UpdateEntry().
   GURL url;
 
   // The URL that referred us.
   GURL referrer_url;
 
   // The time when the download started. Is not changed by UpdateEntry().
   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 UpdateEntry().
   int64 total_bytes;
 
   // The current state of the download.
-  int32 state;
+  DownloadItem::DownloadState state;
 
   // The handle of the download in the database. Is not changed by
   // UpdateEntry().
   int64 db_handle;
 
   // Whether this download has ever been opened from the browser.
   bool opened;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBlIC_BROWSER_DOWNLOAD_PERSISTENT_STORE_INFO_H_