Add the child_port Mach subsystem

util/util.gyp

 # Copyright 2014 The Crashpad Authors. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 22 matching lines @@
         'file/string_file_writer.cc',
         'file/string_file_writer.h',
         'mac/checked_mach_address_range.cc',
         'mac/checked_mach_address_range.h',
         'mac/launchd.h',
         'mac/launchd.mm',
         'mac/mac_util.cc',
         'mac/mac_util.h',
         'mac/service_management.cc',
         'mac/service_management.h',
+        'mach/child_port_types.h',
         'mach/exc_client_variants.cc',
         'mach/exc_client_variants.h',
         'mach/exc_server_variants.cc',
         'mach/exc_server_variants.h',
         'mach/exception_behaviors.cc',
         'mach/exception_behaviors.h',
         'mach/exception_ports.cc',
         'mach/exception_ports.h',
         'mach/mach_extensions.cc',
         'mach/mach_extensions.h',
@@ skipping 46 matching lines @@
         'stdlib/strlcpy.h',
         'stdlib/strnlen.cc',
         'stdlib/strnlen.h',
         'synchronization/semaphore.cc',
         'synchronization/semaphore.h',
       ],
       'conditions': [
         ['OS=="mac"', {
           'actions': [
             {
+              'action_name': 'mig child_port.defs',
+              'variables': {
+                'child_port_defs_file': 'mach/child_port.defs',
+              },
+              'inputs': [
+                'mach/mig.py',
+                '<(child_port_defs_file)',
+              ],
+              'outputs': [
+                '<(INTERMEDIATE_DIR)/util/mach/child_portUser.c',
+                '<(INTERMEDIATE_DIR)/util/mach/child_portServer.c',
+                '<(INTERMEDIATE_DIR)/util/mach/child_port.h',
+                '<(INTERMEDIATE_DIR)/util/mach/child_portServer.h',
+              ],
+              'action': [
+                'python', '<@(_inputs)', '<@(_outputs)'
+              ],
+              'process_outputs_as_sources': 1,
+            },
+            {
               'action_name': 'mig exc.defs',
               'inputs': [
                 'mach/mig.py',
                 '$(SDKROOT)/usr/include/mach/exc.defs',
               ],
               'outputs': [
                 '<(INTERMEDIATE_DIR)/util/mach/excUser.c',
                 '<(INTERMEDIATE_DIR)/util/mach/excServer.c',
                 '<(INTERMEDIATE_DIR)/util/mach/exc.h',
                 '<(INTERMEDIATE_DIR)/util/mach/excServer.h',
@@ skipping 137 matching lines @@
     },
     {
       'target_name': 'util_test_multiprocess_exec_test_child',
       'type': 'executable',
       'sources': [
         'test/multiprocess_exec_test_child.cc',
       ],
     },
   ],
 }