[Mac] DownloadShelf should be notified when autoclosing.

chrome/browser/download/test_download_shelf.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.
 
 #include "chrome/browser/download/test_download_shelf.h"
 
 #include "content/public/browser/download_manager.h"
 
 TestDownloadShelf::TestDownloadShelf()
     : is_showing_(false),
@@ skipping 21 matching lines @@
 }
 
 void TestDownloadShelf::DoAddDownload(content::DownloadItem* download) {
   did_add_download_ = true;
 }
 
 void TestDownloadShelf::DoShow() {
   is_showing_ = true;
 }
 
-void TestDownloadShelf::DoClose() {
+void TestDownloadShelf::DoClose(CloseReason reason) {
   is_showing_ = false;
 }
 
 base::TimeDelta TestDownloadShelf::GetTransientDownloadShowDelay() {
   return base::TimeDelta();
 }
 
 content::DownloadManager* TestDownloadShelf::GetDownloadManager() {
   return download_manager_.get();
 }