Track network stack error codes from UMA and UKM

components/metrics/metrics_reporting_service.h

Index: components/metrics/metrics_reporting_service.h
diff --git a/components/metrics/metrics_reporting_service.h b/components/metrics/metrics_reporting_service.h
index 351bca8d78179286e0f659d4f5d7f842384eb603..8199e90c96ef23fea1b9e54053de0c4e3b443d25 100644
--- a/components/metrics/metrics_reporting_service.h
+++ b/components/metrics/metrics_reporting_service.h
@@ -52,6 +52,7 @@ class MetricsReportingService : public ReportingService {
   void LogActualUploadInterval(base::TimeDelta interval) override;
   void LogCellularConstraint(bool upload_canceled) override;
   void LogResponseCode(int response_code) override;
+  void LogErrorCode(int error_code) override;
   void LogSuccess(size_t log_size) override;
   void LogLargeRejection(size_t log_size) override;