Log atom ANROccurredProcessingStarted

                errorId = null;

            }

            // This atom is only logged with the purpose of triggering Perfetto and the logging

            // needs to happen as close as possible to the time when the ANR is detected.

            // Also, it needs to be logged after adding the error id to the trace, to make sure

            // the error id is present in the trace when the Perfetto trace is captured.

            FrameworkStatsLog.write(FrameworkStatsLog.ANR_OCCURRED_PROCESSING_STARTED,

                    mApp.processName);

            // Dump thread traces as quickly as we can, starting with "interesting" processes.

            firstPids.add(pid);