Adding reporting of metrics sampling rate.

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 <stddef.h>
 
 #include <vector>
 
@@ skipping 11 matching lines @@
 #include "base/strings/string16.h"
 #include "base/threading/platform_thread.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/google/google_brand.h"
 #include "chrome/browser/metrics/chrome_metrics_service_accessor.h"
 #include "chrome/browser/metrics/chrome_stability_metrics_provider.h"
 #include "chrome/browser/metrics/https_engagement_metrics_provider.h"
 #include "chrome/browser/metrics/metrics_reporting_state.h"
+#include "chrome/browser/metrics/sampling_metrics_provider.h"
 #include "chrome/browser/metrics/subprocess_metrics_provider.h"
 #include "chrome/browser/metrics/time_ticks_experiment_win.h"
 #include "chrome/browser/sync/chrome_sync_client.h"
 #include "chrome/browser/ui/browser_otr_state.h"
 #include "chrome/common/channel_info.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/crash_keys.h"
 #include "chrome/common/features.h"
 #include "chrome/installer/util/util_constants.h"
@@ skipping 407 matching lines @@
 
   profiler_metrics_provider_ = new metrics::ProfilerMetricsProvider(
       base::Bind(&metrics::IsCellularLogicEnabled));
   metrics_service_->RegisterMetricsProvider(
       std::unique_ptr<metrics::MetricsProvider>(profiler_metrics_provider_));
 
   metrics_service_->RegisterMetricsProvider(
       std::unique_ptr<metrics::MetricsProvider>(
           new metrics::CallStackProfileMetricsProvider));
 
+  metrics_service_->RegisterMetricsProvider(
+      std::unique_ptr<metrics::MetricsProvider>(
+          new metrics::SamplingMetricsProvider));
+
 #if BUILDFLAG(ANDROID_JAVA_UI)
   metrics_service_->RegisterMetricsProvider(
       std::unique_ptr<metrics::MetricsProvider>(
           new AndroidMetricsProvider(g_browser_process->local_state())));
 #endif  // BUILDFLAG(ANDROID_JAVA_UI)
 
 #if defined(OS_WIN)
   google_update_metrics_provider_ = new GoogleUpdateMetricsProviderWin;
   metrics_service_->RegisterMetricsProvider(
       std::unique_ptr<metrics::MetricsProvider>(
@@ skipping 302 matching lines @@
   }
 }
 
 void ChromeMetricsServiceClient::OnURLOpenedFromOmnibox(OmniboxLog* log) {
   metrics_service_->OnApplicationNotIdle();
 }
 
 bool ChromeMetricsServiceClient::IsUMACellularUploadLogicEnabled() {
   return metrics::IsCellularLogicEnabled();
 }