Record the time when the interstitial is constructed

components/certificate_reporting/error_report.cc

Index: components/certificate_reporting/error_report.cc
diff --git a/components/certificate_reporting/error_report.cc b/components/certificate_reporting/error_report.cc
index 366932d97f5c5304151788416e81ca577022e250..fac5e4bfdf02fc662b80a9b02a72898a18a438c9 100644
--- a/components/certificate_reporting/error_report.cc
+++ b/components/certificate_reporting/error_report.cc
@@ -100,7 +100,8 @@ bool ErrorReport::Serialize(std::string* output) const {
 void ErrorReport::SetInterstitialInfo(
     const InterstitialReason& interstitial_reason,
     const ProceedDecision& proceed_decision,
-    const Overridable& overridable) {
+    const Overridable& overridable,
+    const base::Time& interstitial_time) {
   CertLoggerInterstitialInfo* interstitial_info =
       cert_report_->mutable_interstitial_info();
 
@@ -121,6 +122,8 @@ void ErrorReport::SetInterstitialInfo(
 
   interstitial_info->set_user_proceeded(proceed_decision == USER_PROCEEDED);
   interstitial_info->set_overridable(overridable == INTERSTITIAL_OVERRIDABLE);
+  interstitial_info->set_interstitial_created_time_usec(
+      interstitial_time.ToInternalValue());
 }
 
 void ErrorReport::AddNetworkTimeInfo(