Add ShellNetworkDelegate so content_shell can use cookies (again)

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 65 matching lines @@
         'shell/shell_content_utility_client.cc',
         'shell/shell_content_utility_client.h',
         'shell/shell_devtools_delegate.cc',
         'shell/shell_devtools_delegate.h',
         'shell/shell_download_manager_delegate.cc',
         'shell/shell_download_manager_delegate.h',
         'shell/shell_main_delegate.cc',
         'shell/shell_main_delegate.h',
         'shell/shell_messages.cc',
         'shell/shell_messages.h',
+        'shell/shell_network_delegate.cc',
+        'shell/shell_network_delegate.h',
         'shell/shell_render_process_observer.cc',
         'shell/shell_render_process_observer.h',
         'shell/shell_render_view_host_observer.cc',
         'shell/shell_render_view_host_observer.h',
         'shell/shell_render_view_observer.cc',
         'shell/shell_render_view_observer.h',
         'shell/shell_resource_context.cc',
         'shell/shell_resource_context.h',
         'shell/shell_switches.cc',
         'shell/shell_switches.h',
@@ skipping 335 matching lines @@
               'action': [
                 '../build/mac/verify_no_objc.sh',
               ],
             },
           ],
         },  # target content_shell_helper_app
       ],
     }],  # OS=="mac"
   ],
 }