Reporting: Implement delivery agent.

net/reporting/reporting_report.h

 // Copyright 2017 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.
 
 #ifndef NET_REPORTING_REPORTING_REPORT_H_
 #define NET_REPORTING_REPORTING_REPORT_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 11 matching lines @@
 struct NET_EXPORT ReportingReport {
  public:
   ReportingReport(const GURL& url,
                   const std::string& group,
                   const std::string& type,
                   std::unique_ptr<const base::Value> body,
                   base::TimeTicks queued,
                   int attempts);
   ~ReportingReport();
 
-  // The URL of the document that triggered the report.
+  // The URL of the document that triggered the report. (Included in the
+  // delivered report.)
   GURL url;
 
-  // The endpoint group that should be used to deliver the report.
+  // The endpoint group that should be used to deliver the report. (Not included
+  // in the delivered report.)
   std::string group;
 
-  // The type of the report.
+  // The type of the report. (Included in the delivered report.)
   std::string type;
 
-  // The body of the report.
+  // The body of the report. (Included in the delivered report.)
   std::unique_ptr<const base::Value> body;
 
-  // When the report was queued.
+  // When the report was queued. (Included in the delivered report as an age
+  // relative to the time of the delivery attempt.)
   base::TimeTicks queued;
 
   // The number of delivery attempts made so far, not including an active
-  // attempt.
+  // attempt. (Not included in the delivered report.)
   int attempts = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ReportingReport);
 };
 
 }  // namespace net
 
 #endif  // NET_REPORTING_REPORTING_REPORT_H_