Move kInstallDate from chrome/common/pref_names.h to components/metrics/metrics_pref_names.h

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 66ee1ced355ca87a5638100942f153592ad07ff1..b9d8dbbf0d3f99b8db8948d7a9fa4ceda2779b16 100644
--- a/components/metrics/metrics_service.cc
+++ b/components/metrics/metrics_service.cc
@@ -286,6 +286,8 @@ void MetricsService::RegisterPrefs(PrefRegistrySimple* registry) {
   metrics::MetricsStateManager::RegisterPrefs(registry);
   MetricsLog::RegisterPrefs(registry);
 
+  registry->RegisterInt64Pref(metrics::prefs::kInstallDate, 0);
+
   registry->RegisterInt64Pref(metrics::prefs::kStabilityLaunchTimeSec, 0);
   registry->RegisterInt64Pref(metrics::prefs::kStabilityLastTimestampSec, 0);
   registry->RegisterStringPref(metrics::prefs::kStabilityStatsVersion,
@@ -383,6 +385,10 @@ std::string MetricsService::GetClientId() {
   return state_manager_->client_id();
 }
 
+int64 MetricsService::GetInstallDate() {
+  return local_state_->GetInt64(metrics::prefs::kInstallDate);
+}
+
 scoped_ptr<const base::FieldTrial::EntropyProvider>
 MetricsService::CreateEntropyProvider() {
   // TODO(asvitkine): Refactor the code so that MetricsService does not expose
@@ -740,7 +746,8 @@ void MetricsService::CloseCurrentLog() {
   DCHECK(current_log);
   std::vector<variations::ActiveGroupId> synthetic_trials;
   GetCurrentSyntheticFieldTrials(&synthetic_trials);
-  current_log->RecordEnvironment(metrics_providers_.get(), synthetic_trials);
+  current_log->RecordEnvironment(
+      metrics_providers_.get(), synthetic_trials, GetInstallDate());
   base::TimeDelta incremental_uptime;
   base::TimeDelta uptime;
   GetUptimes(local_state_, &incremental_uptime, &uptime);
@@ -953,7 +960,8 @@ void MetricsService::PrepareInitialMetricsLog() {
   std::vector<variations::ActiveGroupId> synthetic_trials;
   GetCurrentSyntheticFieldTrials(&synthetic_trials);
   initial_metrics_log_->RecordEnvironment(metrics_providers_.get(),
-                                          synthetic_trials);
+                                          synthetic_trials,
+                                          GetInstallDate());
   base::TimeDelta incremental_uptime;
   base::TimeDelta uptime;
   GetUptimes(local_state_, &incremental_uptime, &uptime);