win: Add and use a custom CaptureContext() implementation

util/util_test.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 61 matching lines @@
         'posix/process_info_test.cc',
         'posix/symbolic_constants_posix_test.cc',
         'stdlib/map_insert_test.cc',
         'stdlib/string_number_conversion_test.cc',
         'stdlib/strlcpy_test.cc',
         'stdlib/strnlen_test.cc',
         'string/split_string_test.cc',
         'synchronization/semaphore_test.cc',
         'thread/thread_log_messages_test.cc',
         'thread/thread_test.cc',
+        'win/capture_context_test.cc',
         'win/exception_handler_server_test.cc',
         'win/process_info_test.cc',
         'win/scoped_process_suspend_test.cc',
         'win/time_test.cc',
       ],
       'conditions': [
         ['OS=="mac"', {
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
@@ skipping 32 matching lines @@
                 '/BASE:0x78000000',
                 '/FIXED',
               ],
             },
           },
         },
       ]
     }],
   ],
 }