tools/gn: do not break bootstrap process on Windows

tools/gn/bootstrap/bootstrap.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 """Bootstraps gn.
 
 It is done by first building it manually in a temporary directory, then building
 it with its own BUILD.gn to the final destination.
 """
@@ skipping 231 matching lines @@
       'base/threading/thread_local_storage.cc',
       'base/threading/thread_restrictions.cc',
       'base/threading/worker_pool.cc',
       'base/time/time.cc',
       'base/timer/elapsed_timer.cc',
       'base/timer/timer.cc',
       'base/trace_event/heap_profiler_allocation_context.cc',
       'base/trace_event/heap_profiler_allocation_context_tracker.cc',
       'base/trace_event/heap_profiler_stack_frame_deduplicator.cc',
       'base/trace_event/heap_profiler_type_name_deduplicator.cc',
-      'base/trace_event/malloc_dump_provider.cc',
       'base/trace_event/memory_allocator_dump.cc',
       'base/trace_event/memory_allocator_dump_guid.cc',
       'base/trace_event/memory_dump_manager.cc',
       'base/trace_event/memory_dump_request_args.cc',
       'base/trace_event/memory_dump_session_state.cc',
       'base/trace_event/process_memory_dump.cc',
       'base/trace_event/process_memory_maps.cc',
       'base/trace_event/process_memory_totals.cc',
       'base/trace_event/process_memory_totals_dump_provider.cc',
       'base/trace_event/trace_buffer.cc',
@@ skipping 101 matching lines @@
         'base/mac/mach_logging.cc',
         'base/mac/scoped_mach_port.cc',
         'base/mac/scoped_nsautorelease_pool.mm',
         'base/message_loop/message_pump_mac.mm',
         'base/process/process_handle_mac.cc',
         'base/process/process_iterator_mac.cc',
         'base/process/process_metrics_mac.cc',
         'base/strings/sys_string_conversions_mac.mm',
         'base/time/time_mac.cc',
         'base/threading/platform_thread_mac.mm',
+        'base/trace_event/malloc_dump_provider.cc',
     ])
     static_libraries['libevent']['include_dirs'].extend([
         os.path.join(SRC_ROOT, 'third_party', 'libevent', 'mac')
     ])
     static_libraries['libevent']['sources'].extend([
         'third_party/libevent/kqueue.c',
     ])
 
 
   if is_mac:
@@ skipping 67 matching lines @@
     cmd.append('-v')
   cmd.append('gn')
   check_call(cmd)
 
   if not options.debug:
     check_call(['strip', os.path.join(build_dir, 'gn')])
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))