Create WorkerThread, an abstraction to perform some work on an interval.

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 63 matching lines @@
         'posix/symbolic_constants_posix_test.cc',
         'stdlib/aligned_allocator_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',
+        'thread/worker_thread_test.cc',
         'win/capture_context_test.cc',
         'win/command_line_test.cc',
         'win/critical_section_with_debug_info_test.cc',
         'win/exception_handler_server_test.cc',
         'win/get_function_test.cc',
         'win/handle_test.cc',
         'win/process_info_test.cc',
         'win/scoped_process_suspend_test.cc',
         'win/time_test.cc',
       ],
@@ skipping 38 matching lines @@
               ],
               'RandomizedBaseAddress': '1',  # /DYNAMICBASE:NO.
               'FixedBaseAddress': '2',  # /FIXED.
             },
           },
         },
       ]
     }],
   ],
 }