Fix races in trace events filtering.

base/trace_event/trace_event.h

Index: base/trace_event/trace_event.h
diff --git a/base/trace_event/trace_event.h b/base/trace_event/trace_event.h
index ffc57639f8122cc67884a7b84afe1ac7ce8a8f8d..0a3f189b91a98ecd82b59b923bd68625f09b4354 100644
--- a/base/trace_event/trace_event.h
+++ b/base/trace_event/trace_event.h
@@ -1016,11 +1016,6 @@ class TRACE_EVENT_API_CLASS_EXPORT ScopedTracer {
     if (p_data_ && *data_.category_group_enabled) {
       TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(
           data_.category_group_enabled, data_.name, data_.event_handle);
-      if (INTERNAL_TRACE_EVENT_CATEGORY_GROUP_ENABLED_FOR_FILTERING_MODE(
-              *data_.category_group_enabled)) {
-        TRACE_EVENT_API_END_FILTERED_EVENT(data_.category_group_enabled,
-                                           data_.name, data_.event_handle);
-      }
     }
   }