Add experimental feature info to certificate reports

chrome/browser/ssl/cert_report_helper.cc

 // Copyright 2015 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/ssl/cert_report_helper.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ssl/ssl_cert_reporter.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
+#include "components/network_time/network_time_tracker.h"
 #include "components/prefs/pref_service.h"
 #include "components/safe_browsing_db/safe_browsing_prefs.h"
 #include "components/security_interstitials/core/controller_client.h"
 #include "components/security_interstitials/core/metrics_helper.h"
 #include "components/variations/variations_associated_data.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace {
@@ skipping 77 matching lines @@
 
   std::string serialized_report;
   certificate_reporting::ErrorReport report(request_url_.host(), ssl_info_);
 
   report.SetInterstitialInfo(
       interstitial_reason_, user_proceeded,
       overridable_
           ? certificate_reporting::ErrorReport::INTERSTITIAL_OVERRIDABLE
           : certificate_reporting::ErrorReport::INTERSTITIAL_NOT_OVERRIDABLE);
 
+  // Include information about experimental features relevant to
+  // certificate validation. (At present, this is just network time
+  // querying.)
+  std::map<std::string, std::string> params;
+  params[network_time::kVariationsServiceEnableFetchesOnDemand] =
+      variations::GetVariationParamValueByFeature(
+          network_time::kNetworkTimeServiceQuerying,
+          network_time::kVariationsServiceEnableFetchesOnDemand);
+  report.AddFeature(
+      network_time::kNetworkTimeServiceQuerying.name,
+      base::FeatureList::IsEnabled(network_time::kNetworkTimeServiceQuerying),
+      params);
+
   if (!report.Serialize(&serialized_report)) {
     LOG(ERROR) << "Failed to serialize certificate report.";
     return;
   }
 
   ssl_cert_reporter_->ReportInvalidCertificateChain(serialized_report);
 }
 
 void CertReportHelper::SetSSLCertReporterForTesting(
     std::unique_ptr<SSLCertReporter> ssl_cert_reporter) {
@@ skipping 24 matching lines @@
       if (sendingThreshold >= 0.0 && sendingThreshold <= 1.0)
         return base::RandDouble() <= sendingThreshold;
     }
   }
   return false;
 }
 
 bool CertReportHelper::IsPrefEnabled(const char* pref) {
   return GetProfile(web_contents_)->GetPrefs()->GetBoolean(pref);
 }