Restrict memory maps dump provider to only android and linux

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 232 matching lines @@
       'base/timer/elapsed_timer.cc',
       'base/timer/timer.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/memory_profiler_allocation_context.cc',
       'base/trace_event/process_memory_dump.cc',
       'base/trace_event/process_memory_maps.cc',
-      'base/trace_event/process_memory_maps_dump_provider.cc',
       'base/trace_event/process_memory_totals.cc',
       'base/trace_event/process_memory_totals_dump_provider.cc',
       'base/trace_event/trace_buffer.cc',
       'base/trace_event/trace_config.cc',
       'base/trace_event/trace_event_argument.cc',
       'base/trace_event/trace_event_impl.cc',
       'base/trace_event/trace_event_memory.cc',
       'base/trace_event/trace_event_memory_overhead.cc',
       'base/trace_event/trace_event_synthetic_delay.cc',
       'base/trace_event/trace_log.cc',
@@ skipping 67 matching lines @@
         'base/nix/xdg_util.cc',
         'base/process/internal_linux.cc',
         'base/process/process_handle_linux.cc',
         'base/process/process_iterator_linux.cc',
         'base/process/process_linux.cc',
         'base/process/process_metrics_linux.cc',
         'base/strings/sys_string_conversions_posix.cc',
         'base/sys_info_linux.cc',
         'base/threading/platform_thread_linux.cc',
         'base/trace_event/malloc_dump_provider.cc',
+        'base/trace_event/process_memory_maps_dump_provider.cc',
     ])
     static_libraries['libevent']['include_dirs'].extend([
         os.path.join(SRC_ROOT, 'third_party', 'libevent', 'linux')
     ])
     static_libraries['libevent']['sources'].extend([
         'third_party/libevent/epoll.c',
     ])
 
 
   if is_mac:
@@ skipping 93 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:]))