Add Startup.TimeSinceLastStartup histogram.

chrome/browser/prefs/browser_prefs.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/prefs/browser_prefs.h"
 
 #include <string>
 
 #include "base/metrics/histogram_macros.h"
 #include "base/prefs/pref_registry_simple.h"
@@ skipping 66 matching lines @@
 #include "components/gcm_driver/gcm_channel_status_syncer.h"
 #include "components/network_time/network_time_tracker.h"
 #include "components/omnibox/browser/zero_suggest_provider.h"
 #include "components/password_manager/core/browser/password_bubble_experiment.h"
 #include "components/password_manager/core/browser/password_manager.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/proxy_config/pref_proxy_config_tracker_impl.h"
 #include "components/rappor/rappor_service.h"
 #include "components/search_engines/template_url_prepopulate_data.h"
 #include "components/ssl_config/ssl_config_service_manager.h"
+#include "components/startup_metric_utils/browser/startup_metric_utils.h"
 #include "components/sync_driver/sync_prefs.h"
 #include "components/syncable_prefs/pref_service_syncable.h"
 #include "components/translate/core/browser/translate_prefs.h"
 #include "components/variations/service/variations_service.h"
 #include "components/web_resource/promo_resource_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "net/http/http_server_properties_manager.h"
 
 #if defined(ENABLE_AUTOFILL_DIALOG)
 #include "chrome/browser/ui/autofill/autofill_dialog_controller.h"
@@ skipping 171 matching lines @@
   IntranetRedirectDetector::RegisterPrefs(registry);
   IOThread::RegisterPrefs(registry);
   network_time::NetworkTimeTracker::RegisterPrefs(registry);
   PrefProxyConfigTrackerImpl::RegisterPrefs(registry);
   ProfileInfoCache::RegisterPrefs(registry);
   profiles::RegisterPrefs(registry);
   rappor::RapporService::RegisterPrefs(registry);
   RegisterScreenshotPrefs(registry);
   SigninManagerFactory::RegisterPrefs(registry);
   ssl_config::SSLConfigServiceManager::RegisterPrefs(registry);
+  startup_metric_utils::RegisterPrefs(registry);
   web_resource::PromoResourceService::RegisterPrefs(registry);
 
 #if defined(ENABLE_AUTOFILL_DIALOG)
   autofill::AutofillDialogController::RegisterPrefs(registry);
 #endif
 
 #if defined(ENABLE_CONFIGURATION_POLICY)
   policy::BrowserPolicyConnector::RegisterPrefs(registry);
   policy::PolicyStatisticsCollector::RegisterPrefs(registry);
 #endif
@@ skipping 302 matching lines @@
 
   // Added 12/1015.
   profile_prefs->ClearPref(kURLsToRestoreOnStartupOld);
   profile_prefs->ClearPref(kRestoreStartupURLsMigrationTime);
 
   // Added 12/2015.
   profile_prefs->ClearPref(kRestoreOnStartupMigrated);
 }
 
 }  // namespace chrome