When the download folder does not exist, change the download folder to a user's "Downloads"

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 822 matching lines @@
         'browser/download/download_safe_browsing_client.h',
         'browser/download/download_shelf.h',
         'browser/download/download_shelf_context_menu.cc',
         'browser/download/download_shelf_context_menu.h',
         'browser/download/download_started_animation.h',
         'browser/download/download_state_info.cc',
         'browser/download/download_state_info.h',
         'browser/download/download_status_updater.cc',
         'browser/download/download_status_updater.h',
         'browser/download/download_status_updater_delegate.h',
+        'browser/download/download_test_util.cc',
+        'browser/download/download_test_util.h',
         'browser/download/download_types.cc',
         'browser/download/download_types.h',
         'browser/download/download_util.cc',
         'browser/download/download_util.h',
         'browser/download/drag_download_file.cc',
         'browser/download/drag_download_file.h',
         'browser/download/drag_download_util.cc',
         'browser/download/drag_download_util.h',
         'browser/download/mhtml_generation_manager.cc',
         'browser/download/mhtml_generation_manager.h',
@@ skipping 3818 matching lines @@
       'hard_dependency': 1,
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: