Add factory class for CertificateReportingService and a new metrics provider.

chrome/browser/safe_browsing/certificate_reporting_metrics_provider.cc

Index: chrome/browser/safe_browsing/certificate_reporting_metrics_provider.cc
diff --git a/chrome/browser/safe_browsing/certificate_reporting_metrics_provider.cc b/chrome/browser/safe_browsing/certificate_reporting_metrics_provider.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b7304bc2d3d662bde51aa73d9cbc08fb4bb29d9b
--- /dev/null
+++ b/chrome/browser/safe_browsing/certificate_reporting_metrics_provider.cc
@@ -0,0 +1,17 @@
+// Copyright 2016 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/safe_browsing/certificate_reporting_metrics_provider.h"
+
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/safe_browsing/certificate_reporting_service.h"
+#include "chrome/browser/safe_browsing/certificate_reporting_service_factory.h"
+
+CertificateReportingMetricsProvider::CertificateReportingMetricsProvider() {}
+
+CertificateReportingMetricsProvider::~CertificateReportingMetricsProvider() {}
+
+void CertificateReportingMetricsProvider::ProvideGeneralMetrics(
+    metrics::ChromeUserMetricsExtension* unused) {}