Send metrics with embedded system profiles after system startup.

components/metrics/file_metrics_provider.cc

Index: components/metrics/file_metrics_provider.cc
diff --git a/components/metrics/file_metrics_provider.cc b/components/metrics/file_metrics_provider.cc
index d9a6a042c23ce137a1f0deac417e7f81ffb61f14..956c3cfd67ac9913345f72cd8d1f8ac81a7957f3 100644
--- a/components/metrics/file_metrics_provider.cc
+++ b/components/metrics/file_metrics_provider.cc
@@ -20,6 +20,7 @@
 #include "base/time/time.h"
 #include "components/metrics/metrics_pref_names.h"
 #include "components/metrics/metrics_service.h"
+#include "components/metrics/persistent_system_profile.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
 
@@ -487,6 +488,18 @@ void FileMetricsProvider::OnDidCreateMetricsLog() {
   sources_for_previous_run_.clear();
 }
 
+bool FileMetricsProvider::ProvideStabilitySystemProfile(
+    SystemProfileProto* system_profile_proto) {
+  for (const std::unique_ptr<SourceInfo>& source : sources_for_previous_run_) {
+    DCHECK(source->allocator);
+    if (PersistentSystemProfile::GetSystemProfile(
+            *source->allocator->memory_allocator(), system_profile_proto)) {
+      return true;
+    }
+  }
+  return false;
+}
+
 bool FileMetricsProvider::HasInitialStabilityMetrics() {
   DCHECK(thread_checker_.CalledOnValidThread());