Clean up entries left by crashes in the DownloadDB.

chrome/browser/history/history_service.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 786 matching lines @@
   // Beware! The first Bind() does not simply |scoped_rows.get()| because
   // base::Passed(&scoped_rows) nullifies |scoped_rows|, and compilers do not
   // guarantee that the first Bind's arguments are evaluated before the second
   // Bind's arguments.
   thread_->message_loop_proxy()->PostTaskAndReply(
       FROM_HERE,
       base::Bind(&HistoryBackend::QueryDownloads, history_backend_.get(), rows),
       base::Bind(callback, base::Passed(&scoped_rows)));
 }
 
-// Changes all IN_PROGRESS in the database entries to CANCELED.
-// IN_PROGRESS entries are the corrupted entries, not updated by next function
-// because of the crash or some other extremal exit.
-void HistoryService::CleanUpInProgressEntries() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  ScheduleAndForget(PRIORITY_NORMAL, &HistoryBackend::CleanUpInProgressEntries);
-}
-
 // 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 history::DownloadRow& data) {
   DCHECK(thread_checker_.CalledOnValidThread());
   ScheduleAndForget(PRIORITY_NORMAL, &HistoryBackend::UpdateDownload, data);
 }
 
 void HistoryService::RemoveDownloads(const std::set<int64>& db_handles) {
   DCHECK(thread_checker_.CalledOnValidThread());
   ScheduleAndForget(PRIORITY_NORMAL,
@@ skipping 448 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   visit_database_observers_.RemoveObserver(observer);
 }
 
 void HistoryService::NotifyVisitDBObserversOnAddVisit(
     const history::BriefVisitInfo& info) {
   DCHECK(thread_checker_.CalledOnValidThread());
   FOR_EACH_OBSERVER(history::VisitDatabaseObserver, visit_database_observers_,
                     OnAddVisit(info));
 }