Add retry information to certificate reports.

components/certificate_reporting/error_report.h

Index: components/certificate_reporting/error_report.h
diff --git a/components/certificate_reporting/error_report.h b/components/certificate_reporting/error_report.h
index 92ce5a50fc050f2ac2f759bacd81ef9e8877d437..f9236e1aa77588dd544219adbd2a6224b012c45c 100644
--- a/components/certificate_reporting/error_report.h
+++ b/components/certificate_reporting/error_report.h
@@ -72,9 +72,15 @@ class ErrorReport {
   void AddNetworkTimeInfo(
       const network_time::NetworkTimeTracker* network_time_tracker);
 
+  // Sets is_retry_upload field of the protobuf to |is_retry_upload|.
+  void SetIsRetryUpload(bool is_retry_upload);
+
   // Gets the hostname to which this report corresponds.
   const std::string& hostname() const;
 
+  // Returns true if the report has been retried.
+  bool is_retry_upload() const;
+
  private:
   std::unique_ptr<CertLoggerRequest> cert_report_;
 };