metrics: Add leak detector controller in Chrome OS metrics system

chrome/browser/metrics/chromeos_metrics_provider.cc

 // Copyright 2014 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/metrics/chromeos_metrics_provider.h"
 
 #include <stddef.h>
 
+#include "base/feature_list.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
+#include "chrome/common/chrome_features.h"
 #include "chrome/common/pref_names.h"
 #include "chromeos/system/statistics_provider.h"
+#include "components/metrics/leak_detector/leak_detector.h"
 #include "components/metrics/metrics_service.h"
 #include "components/metrics/proto/chrome_user_metrics_extension.pb.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 #include "device/bluetooth/bluetooth_adapter_factory.h"
 #include "device/bluetooth/bluetooth_device.h"
 #include "ui/events/event_utils.h"
@@ skipping 108 matching lines @@
   policy::BrowserPolicyConnectorChromeOS* connector =
       g_browser_process->platform_part()->browser_policy_connector_chromeos();
   if (!connector)
     return ERROR_GETTING_ENROLLMENT_STATUS;
 
   return connector->IsEnterpriseManaged() ? MANAGED : NON_MANAGED;
 }
 
 void ChromeOSMetricsProvider::Init() {
   perf_provider_.Init();
+
+  if (base::FeatureList::IsEnabled(features::kRuntimeMemoryLeakDetector)) {
+    leak_detector_controller_.reset(new metrics::LeakDetectorController);
+  }
 }
 
 void ChromeOSMetricsProvider::OnDidCreateMetricsLog() {
   registered_user_count_at_log_initialization_ = false;
   if (user_manager::UserManager::IsInitialized()) {
     registered_user_count_at_log_initialization_ = true;
     user_count_at_log_initialization_ =
         user_manager::UserManager::Get()->GetLoggedInUsers().size();
   }
 }
@@ skipping 149 matching lines @@
 
 void ChromeOSMetricsProvider::SetBluetoothAdapter(
     scoped_refptr<device::BluetoothAdapter> adapter) {
   adapter_ = adapter;
 }
 
 void ChromeOSMetricsProvider::RecordEnrollmentStatus() {
   UMA_HISTOGRAM_ENUMERATION(
       "UMA.EnrollmentStatus", GetEnrollmentStatus(), ENROLLMENT_STATUS_MAX);
 }