Switch users of foundation_util.h to include it directly and clean up uses of mac_util.h.

chrome/utility/importer/safari_importer.mm

 // 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.
 
 #include <Cocoa/Cocoa.h>
 
 #include "chrome/utility/importer/safari_importer.h"
 
 #include <map>
 #include <vector>
 
 #include "base/files/file_util.h"
-#include "base/mac/mac_util.h"
+#include "base/mac/foundation_util.h"
 #include "base/strings/string16.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "chrome/common/importer/imported_bookmark_entry.h"
 #include "chrome/common/importer/imported_favicon_usage.h"
 #include "chrome/common/importer/importer_bridge.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/utility/importer/favicon_reencode.h"
@@ skipping 349 matching lines @@
     if (!last_visit_str)
       continue;
 
     // Convert Safari's last visit time to Unix Epoch time.
     double seconds_since_unix_epoch = HistoryTimeToEpochTime(last_visit_str);
     row.last_visit = base::Time::FromDoubleT(seconds_since_unix_epoch);
 
     history_items->push_back(row);
   }
 }