Move Time, TimeDelta and TimeTicks into namespace base.

chrome/browser/history/expire_history_backend.cc

 // Copyright (c) 2006-2008 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.
 
 #include "chrome/browser/history/expire_history_backend.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/file_util.h"
 #include "chrome/browser/bookmarks/bookmark_service.h"
 #include "chrome/browser/history/archived_database.h"
 #include "chrome/browser/history/history_database.h"
 #include "chrome/browser/history/history_notifications.h"
 #include "chrome/browser/history/text_database_manager.h"
 #include "chrome/browser/history/thumbnail_database.h"
 #include "chrome/common/notification_types.h"
 
+using base::Time;
+using base::TimeDelta;
+
 namespace history {
 
 namespace {
 
 // Returns true if this visit is worth archiving. Otherwise, this visit is not
 // worth saving (for example, subframe navigations and redirects) and we can
 // just delete it when it gets old.
 bool ShouldArchiveVisit(const VisitRow& visit) {
   int no_qualifier = PageTransition::StripQualifier(visit.transition);
 
@@ skipping 460 matching lines @@
   // bookmark service is loaded on a separate thread and may not be done by the
   // time we get here. We therefor block until the bookmarks have finished
   // loading.
   if (bookmark_service_)
     bookmark_service_->BlockTillLoaded();
   return bookmark_service_;
 }
 
 }  // namespace history