Always check if providers have initial stability metrics.

components/metrics/test_metrics_provider.cc

Index: components/metrics/test_metrics_provider.cc
diff --git a/components/metrics/test_metrics_provider.cc b/components/metrics/test_metrics_provider.cc
index 409d8d129d66698623955a794180904dacaa6f82..db88ed4c80623529b37d818cd77cfb518704c9d8 100644
--- a/components/metrics/test_metrics_provider.cc
+++ b/components/metrics/test_metrics_provider.cc
@@ -17,6 +17,7 @@ void TestMetricsProvider::OnRecordingDisabled() {
 }
 
 bool TestMetricsProvider::HasInitialStabilityMetrics() {
+  has_initial_stability_metrics_called_ = true;
   return has_initial_stability_metrics_;
 }