Add MachMultiprocess and its test

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 45 matching lines @@
         'stdlib/objc.h',
         'stdlib/strlcpy.cc',
         'stdlib/strlcpy.h',
       ],
     },
     {
       'target_name': 'util_test_lib',
       'type': 'static_library',
       'dependencies': [
         '../compat/compat.gyp:compat',
+        '../third_party/gtest/gtest.gyp:gtest',
         '../third_party/mini_chromium/mini_chromium/base/base.gyp:base',
         'util',
       ],
       'include_dirs': [
         '..',
       ],
+      'link_settings': {
+        'libraries': [
+          '$(SDKROOT)/usr/lib/libbsm.dylib',
+        ],
+      },
       'sources': [
         'test/errors.cc',
         'test/errors.h',
         'test/mac/mach_errors.cc',
         'test/mac/mach_errors.h',
+        'test/mac/mach_multiprocess.cc',
+        'test/mac/mach_multiprocess.h',
       ],
     },
     {
       'target_name': 'util_test',
       'type': 'executable',
       'dependencies': [
         'util',
         'util_test_lib',
         '../compat/compat.gyp:compat',
         '../third_party/gtest/gtest.gyp:gtest',
@@ skipping 10 matching lines @@
         'mac/service_management_test.mm',
         'mach/bootstrap_test.cc',
         'mach/task_memory_test.cc',
         'misc/initialization_state_dcheck_test.cc',
         'misc/initialization_state_test.cc',
         'misc/uuid_test.cc',
         'numeric/checked_range_test.cc',
         'numeric/in_range_cast_test.cc',
         'posix/process_util_test.cc',
         'stdlib/strlcpy_test.cc',
+        'test/mac/mach_multiprocess_test.cc',
       ],
     },
   ],
 }