AddMetadataEventsWhileLocked 1427 base/debug/trace_event_impl.cc   AddMetadataEventsWhileLocked();
AddMetadataEventsWhileLocked 1700 base/debug/trace_event_impl.cc     AddMetadataEventsWhileLocked();
AddMetadataEventsWhileLocked  630 base/debug/trace_event_impl.h   void AddMetadataEventsWhileLocked();