Reporting: Implement cache.

net/reporting/reporting_client.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_CLIENT_H_
+#define NET_REPORTING_REPORTING_CLIENT_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "base/time/time.h"
+#include "net/base/net_export.h"
+#include "url/gurl.h"
+#include "url/origin.h"
+
+namespace net {
+
+// The configuration by an origin to use an endpoint for report delivery.
+struct NET_EXPORT ReportingClient {
+ public:
+  enum class Subdomains { EXCLUDE = 0, INCLUDE = 1 };
+
+  ReportingClient(const url::Origin& origin,
+                  const GURL& endpoint,
+                  Subdomains subdomains,
+                  const std::string& group,
+                  base::TimeTicks expires);
+  ~ReportingClient();
+
+  // The origin from which reports will be delivered.
+  url::Origin origin;
+
+  // The endpoint to which reports may be delivered. (Origins may configure
+  // many.)
+  GURL endpoint;
+
+  // Whether subdomains of the host of |origin| should also be handled by this
+  // client.
+  Subdomains subdomains = Subdomains::EXCLUDE;
+
+  // The endpoint group to which this client belongs.
+  std::string group = "default";
+
+  // When this client's max-age has expired.
+  base::TimeTicks expires;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ReportingClient);
+};
+
+}  // namespace net
+
+#endif  // NET_REPORTING_REPORTING_CLIENT_H_