Convert this static method to a member method.

components/metrics/metrics_service.cc

Index: components/metrics/metrics_service.cc
diff --git a/components/metrics/metrics_service.cc b/components/metrics/metrics_service.cc
index daa7d5b0bfdb4a23e1fd0da358150abd017b4cf8..cf71f1460f4ec6272c701b7ee8a888f9dc1daf20 100644
--- a/components/metrics/metrics_service.cc
+++ b/components/metrics/metrics_service.cc
@@ -518,8 +518,8 @@ void MetricsService::OnAppEnterForeground() {
   StartSchedulerIfNecessary();
 }
 #else
-void MetricsService::LogNeedForCleanShutdown(PrefService* local_state) {
-  local_state->SetBoolean(metrics::prefs::kStabilityExitedCleanly, false);
+void MetricsService::LogNeedForCleanShutdown() {
+  local_state_->SetBoolean(metrics::prefs::kStabilityExitedCleanly, false);
   // Redundant setting to be sure we call for a clean shutdown.
   clean_shutdown_status_ = NEED_TO_SHUTDOWN;
 }