Add EffectiveConnectionType enum to the system profile proto

chrome/browser/metrics/chrome_metrics_service_client.cc

Index: chrome/browser/metrics/chrome_metrics_service_client.cc
diff --git a/chrome/browser/metrics/chrome_metrics_service_client.cc b/chrome/browser/metrics/chrome_metrics_service_client.cc
index fa618404fe9cbdf83657f32b48140bd05bf1638b..e23075f199d916782c828f0c6d24c18c23d9f134 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.cc
+++ b/chrome/browser/metrics/chrome_metrics_service_client.cc
@@ -32,6 +32,7 @@
 #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/network_quality_estimator_provider_impl.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"
@@ -570,10 +571,16 @@ void ChromeMetricsServiceClient::Initialize() {
       std::unique_ptr<metrics::MetricsProvider>(
           new ExtensionsMetricsProvider(metrics_state_manager_)));
 #endif
+
+  std::unique_ptr<metrics::NetworkMetricsProvider> network_metrics_provider(
+      new metrics::NetworkMetricsProvider(
+          std::unique_ptr<metrics::NetworkQualityEstimatorProviderImpl>(
+              new metrics::NetworkQualityEstimatorProviderImpl(
+                  g_browser_process->io_thread())),
+          content::BrowserThread::GetBlockingPool()));
+
   metrics_service_->RegisterMetricsProvider(
-      std::unique_ptr<metrics::MetricsProvider>(
-          new metrics::NetworkMetricsProvider(
-              content::BrowserThread::GetBlockingPool())));
+      std::move(network_metrics_provider));
 
   // Currently, we configure OmniboxMetricsProvider to not log events to UMA
   // if there is a single incognito session visible. In the future, it may