Metrics log modification to handle external components.

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 f86f33ab8b511b4d90afd011da3705426cfe4ba4..edfeb9a13e7927237dcc3c8c7affaef509ed0ea7 100644
--- a/components/metrics/metrics_service.cc
+++ b/components/metrics/metrics_service.cc
@@ -353,6 +353,10 @@ int64 MetricsService::GetInstallDate() {
   return local_state_->GetInt64(prefs::kInstallDate);
 }
 
+int64 MetricsService::GetMetricsReportingEnabledDate() {
+  return local_state_->GetInt64(prefs::kMetricsReportingEnabledTimestamp);
+}
+
 scoped_ptr<const base::FieldTrial::EntropyProvider>
 MetricsService::CreateEntropyProvider() {
   // TODO(asvitkine): Refactor the code so that MetricsService does not expose
@@ -518,6 +522,10 @@ void MetricsService::ClearSavedStabilityMetrics() {
   local_state_->SetBoolean(prefs::kStabilitySessionEndCompleted, true);
 }
 
+void MetricsService::PushExternalLog(const std::string& log) {
+  log_manager_.StoreLog(log, MetricsLog::ONGOING_LOG);
+}
+
 //------------------------------------------------------------------------------
 // private methods
 //------------------------------------------------------------------------------
@@ -1086,7 +1094,7 @@ void MetricsService::RecordCurrentEnvironment(MetricsLog* log) {
   std::vector<variations::ActiveGroupId> synthetic_trials;
   GetCurrentSyntheticFieldTrials(&synthetic_trials);
   log->RecordEnvironment(metrics_providers_.get(), synthetic_trials,
-                         GetInstallDate());
+                         GetInstallDate(), GetMetricsReportingEnabledDate());
   UMA_HISTOGRAM_COUNTS_100("UMA.SyntheticTrials.Count",
                            synthetic_trials.size());
 }