Reduced the lifetime of DownloadCreateInfo.

chrome/browser/history/history.cc

 // Copyright (c) 2011 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 496 matching lines @@
     QueryURLCallback* callback) {
   return Schedule(PRIORITY_UI, &HistoryBackend::QueryURL, consumer,
                   new history::QueryURLRequest(callback), url, want_visits);
 }
 
 // Downloads -------------------------------------------------------------------
 
 // Handle creation of a download by creating an entry in the history service's
 // 'downloads' table.
 HistoryService::Handle HistoryService::CreateDownload(
-    const DownloadCreateInfo& create_info,
+    const DownloadHistoryInfo& create_info,
     CancelableRequestConsumerBase* consumer,
     HistoryService::DownloadCreateCallback* callback) {
   return Schedule(PRIORITY_NORMAL, &HistoryBackend::CreateDownload, consumer,
                   new history::DownloadCreateRequest(callback), create_info);
 }
 
 // Handle queries for a list of all downloads in the history database's
 // 'downloads' table.
 HistoryService::Handle HistoryService::QueryDownloads(
     CancelableRequestConsumerBase* consumer,
@@ skipping 283 matching lines @@
     history::TopSites* ts = profile_->GetTopSitesWithoutCreating();
     if (ts)
       ts->MigrateFromHistory();
   }
 }
 
 void HistoryService::OnTopSitesReady() {
   ScheduleAndForget(PRIORITY_NORMAL,
                     &HistoryBackend::MigrateThumbnailsDatabase);
 }