Quickly close tabs/window with long-running unload handlers.

chrome/chrome_browser_ui.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_ui',
       'type': 'static_library',
@@ skipping 1287 matching lines @@
         'browser/ui/toolbar/toolbar_model_impl.h',
         'browser/ui/toolbar/toolbar_model_delegate.h',
         'browser/ui/toolbar/wrench_menu_model.cc',
         'browser/ui/toolbar/wrench_menu_model.h',
         'browser/ui/top_level_widget.h',
         'browser/ui/uma_browsing_activity_observer.cc',
         'browser/ui/uma_browsing_activity_observer.h',
         'browser/ui/uninstall_browser_prompt.h',
         'browser/ui/unload_controller.cc',
         'browser/ui/unload_controller.h',
+        'browser/ui/unload_detached_handler.cc',
+        'browser/ui/unload_detached_handler.h',
         'browser/ui/user_data_dir_dialog.h',
         'browser/ui/view_ids.h',
         'browser/ui/views/about_ipc_dialog.cc',
         'browser/ui/views/about_ipc_dialog.h',
         'browser/ui/views/accelerator_table.cc',
         'browser/ui/views/accelerator_table.h',
         'browser/ui/views/accessibility/accessibility_event_router_views.cc',
         'browser/ui/views/accessibility/accessibility_event_router_views.h',
         'browser/ui/views/accessibility/invert_bubble_view.cc',
         'browser/ui/views/accessibility/invert_bubble_view.h',
@@ skipping 1396 matching lines @@
             ['exclude', '^browser/ui/views/select_file_dialog_extension.cc'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension.h'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension_factory.cc'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension_factory.h'],
           ]}
         ],
       ],
     },
   ],
 }