Re-enable HttpsEngagementMetricsProvider

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 8cfc600f91aa94e85003d33c276ec65c2a5da4c6..2674edc9846239bbbd99dae3a27951874899b078 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.cc
+++ b/chrome/browser/metrics/chrome_metrics_service_client.cc
@@ -30,6 +30,7 @@
 #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"
@@ -691,6 +692,10 @@ void ChromeMetricsServiceClient::Initialize() {
       std::unique_ptr<metrics::MetricsProvider>(
           new syncer::DeviceCountMetricsProvider(base::Bind(
               &browser_sync::ChromeSyncClient::GetDeviceInfoTrackers))));
+
+  metrics_service_->RegisterMetricsProvider(
+      std::unique_ptr<metrics::MetricsProvider>(
+          new HttpsEngagementMetricsProvider()));
 }
 
 bool ChromeMetricsServiceClient::ShouldIncludeProfilerDataInLog() {