Fix performance-for-range-copy warnings

Bug: 30413223
Test: make with WITH_TIDY=1 DEFAULT_GLOBAL_TIDY_CHECKS=-*,performance*
Change-Id: Ie481e88025a7a1f3abde8ff63420d5ccd8577e52

1 files changed, 1 insertions, 1 deletions

diff --git a/cmds/statsd/src/metrics/MetricsManager.cpp b/cmds/statsd/src/metrics/MetricsManager.cpp
index 4fac0e1a141b..a6c7f3a0dc87 100644
--- a/cmds/statsd/src/metrics/MetricsManager.cpp
+++ b/cmds/statsd/src/metrics/MetricsManager.cpp
@@ -395,7 +395,7 @@ void MetricsManager::onPeriodicAlarmFired(
 // Returns the total byte size of all metrics managed by a single config source.
 size_t MetricsManager::byteSize() {
     size_t totalSize = 0;
-    for (auto metricProducer : mAllMetricProducers) {
+    for (const auto& metricProducer : mAllMetricProducers) {
         totalSize += metricProducer->byteSize();
     }
     return totalSize;