Chrome should shut down cleanly when quit from the Dock icon menu, during...

chrome/chrome.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'chromium_code': 1,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
@@ skipping 824 matching lines @@
         'browser/browsing_instance.cc',
         'browser/browsing_instance.h',
         'browser/cancelable_request.cc',
         'browser/cancelable_request.h',
         'browser/cert_store.cc',
         'browser/cert_store.h',
         'browser/character_encoding.cc',
         'browser/character_encoding.h',
         'browser/child_process_security_policy.cc',
         'browser/child_process_security_policy.h',
+        'browser/chrome_application_mac.h',
+        'browser/chrome_application_mac.mm',
         'browser/chrome_plugin_browsing_context.cc',
         'browser/chrome_plugin_browsing_context.h',
         'browser/chrome_plugin_host.cc',
         'browser/chrome_plugin_host.h',
         'browser/chrome_thread.cc',
         'browser/chrome_thread.h',
         'browser/chromeos/chromeos_version_loader.cc',
         'browser/chromeos/chromeos_version_loader.h',
         'browser/chromeos/compact_navigation_bar.cc',
         'browser/chromeos/compact_navigation_bar.h',
@@ skipping 5261 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],
   ],  # 'conditions'
 }