Send metrics with embedded system profiles after system startup.

components/metrics/metrics_provider.cc

Index: components/metrics/metrics_provider.cc
diff --git a/components/metrics/metrics_provider.cc b/components/metrics/metrics_provider.cc
index fd864e41136ebaa916cc16496777de8fbc970a59..c5ca5853d347ce9b9f9b222ab7230af67267b4d8 100644
--- a/components/metrics/metrics_provider.cc
+++ b/components/metrics/metrics_provider.cc
@@ -27,6 +27,12 @@ void MetricsProvider::OnRecordingDisabled() {
 void MetricsProvider::OnAppEnterBackground() {
 }
 
+bool MetricsProvider::ProvideIndependentMetrics(
+    SystemProfileProto* system_profile_proto,
+    base::HistogramSnapshotManager* snapshot_manager) {
+  return false;
+}
+
 void MetricsProvider::ProvideSystemProfileMetrics(
     SystemProfileProto* system_profile_proto) {
 }