Extract guts of ChromeStabilityMetricsProvider into helper class

chrome/browser/metrics/chrome_metrics_service_client.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/chrome_metrics_service_client.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 20 matching lines @@
 #include "chrome/common/pref_names.h"
 #include "components/metrics/call_stack_profile_metrics_provider.h"
 #include "components/metrics/drive_metrics_provider.h"
 #include "components/metrics/gpu/gpu_metrics_provider.h"
 #include "components/metrics/metrics_service.h"
 #include "components/metrics/net/net_metrics_log_uploader.h"
 #include "components/metrics/net/network_metrics_provider.h"
 #include "components/metrics/net/version_utils.h"
 #include "components/metrics/profiler/profiler_metrics_provider.h"
 #include "components/metrics/profiler/tracking_synchronizer.h"
+#include "components/metrics/stability_metrics_helper.h"
 #include "components/metrics/url_constants.h"
 #include "components/omnibox/browser/omnibox_metrics_provider.h"
 #include "components/variations/variations_associated_data.h"
 #include "components/version_info/version_info.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/histogram_fetcher.h"
 #include "content/public/browser/notification_service.h"
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/metrics/android_metrics_provider.h"
@@ skipping 110 matching lines @@
 
   return client.Pass();
 }
 
 // static
 void ChromeMetricsServiceClient::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterInt64Pref(prefs::kUninstallLastLaunchTimeSec, 0);
   registry->RegisterInt64Pref(prefs::kUninstallLastObservedRunTimeSec, 0);
 
   metrics::MetricsService::RegisterPrefs(registry);
-  ChromeStabilityMetricsProvider::RegisterPrefs(registry);
+  metrics::StabilityMetricsHelper::RegisterPrefs(registry);
 
 #if defined(OS_ANDROID)
   AndroidMetricsProvider::RegisterPrefs(registry);
 #endif  // defined(OS_ANDROID)
 
 #if defined(ENABLE_PLUGINS)
   PluginMetricsProvider::RegisterPrefs(registry);
 #endif  // defined(ENABLE_PLUGINS)
 }
 
@@ skipping 427 matching lines @@
       break;
 
     default:
       NOTREACHED();
   }
 }
 
 void ChromeMetricsServiceClient::OnURLOpenedFromOmnibox(OmniboxLog* log) {
   metrics_service_->OnApplicationNotIdle();
 }