Mac content shell: Implement CrApplication.

content/content_shell.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.
 
 {
   'variables': {
     'content_shell_product_name': 'Content Shell',
   },
   'targets': [
     {
@@ skipping 38 matching lines @@
       'sources': [
         'shell/layout_test_controller_bindings.cc',
         'shell/layout_test_controller_bindings.h',
         'shell/paths_mac.h',
         'shell/paths_mac.mm',
         'shell/shell.cc',
         'shell/shell.h',
         'shell/shell_gtk.cc',
         'shell/shell_mac.mm',
         'shell/shell_win.cc',
+        'shell/shell_application_mac.h',
+        'shell/shell_application_mac.mm',
         'shell/shell_browser_context.cc',
         'shell/shell_browser_context.h',
         'shell/shell_browser_main.cc',
         'shell/shell_browser_main.h',
         'shell/shell_browser_main_parts.cc',
         'shell/shell_browser_main_parts.h',
         'shell/shell_browser_main_parts_mac.mm',
         'shell/shell_content_browser_client.cc',
         'shell/shell_content_browser_client.h',
         'shell/shell_content_client.cc',
@@ skipping 360 matching lines @@
               'action': [
                 '../build/mac/verify_no_objc.sh',
               ],
             },
           ],
         },  # target content_shell_helper_app
       ],
     }],  # OS=="mac"
   ],
 }