Method add

core/src/main/java/io/grpc/internal/ChannelTracer.java:68–76

(Event event)

    if (maxEvents > 0) {
      events = new ArrayDeque<Event>() {
          @GuardedBy("lock")
          @Override
          public boolean add(Event event) {
            if (size() == maxEvents) {
              removeFirst();
            }
            eventsLogged++;
            return super.add(event);
          }
        };
    } else {
      events = null;