Reporting: Wrap context in service.

net/reporting/reporting_service.h

Index: net/reporting/reporting_service.h
diff --git a/net/reporting/reporting_service.h b/net/reporting/reporting_service.h
new file mode 100644
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+++ b/net/reporting/reporting_service.h
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+// 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_SERVICE_H_
+#define NET_REPORTING_REPORTING_SERVICE_H_
+
+#include <memory>
+#include <string>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "net/base/net_export.h"
+
+class GURL;
+
+namespace base {
+class Value;
+}  // namespace
+
+namespace net {
+
+class ReportingContext;
+class ReportingDelegate;
+struct ReportingPolicy;
+class URLRequestContext;
+
+// The external interface to the Reporting system, used by the embedder of //net
+// and also other parts of //net.
+class NET_EXPORT ReportingService {
+ public:
+  virtual ~ReportingService();
+
+  // Creates a ReportingService. |policy| will be copied. |request_context| must
+  // outlive the ReportingService. The ReportingService will take ownership of
+  // |delegate| and destroy it when the service is destroyed.
+  static std::unique_ptr<ReportingService> Create(
+      const ReportingPolicy& policy,
+      URLRequestContext* request_context,
+      std::unique_ptr<ReportingDelegate> delegate);
+
+  // Creates a ReportingService for testing purposes using an
+  // already-constructed ReportingContext. The ReportingService will take
+  // ownership of |reporting_context| and destroy it when the service is
+  // destroyed.
+  static std::unique_ptr<ReportingService> CreateForTesting(
+      std::unique_ptr<ReportingContext> reporting_context);
+
+  // Queues a report for delivery. |url| is the URL that originated the report.
+  // |group| is the endpoint group to which the report should be delivered.
+  // |type| is the type of the report. |body| is the body of the report.
+  //
+  // The Reporting system will take ownership of |body|; all other parameters
+  // will be copied.
+  virtual void QueueReport(const GURL& url,
+                           const std::string& group,
+                           const std::string& type,
+                           std::unique_ptr<const base::Value> body) = 0;
+
+  // Processes a Report-To header. |url| is the URL that originated the header;
+  // |header_value| is the normalized value of the Report-To header.
+  virtual void ProcessHeader(const GURL& url,
+                             const std::string& header_value) = 0;
+
+ protected:
+  ReportingService() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ReportingService);
+};
+
+}  // namespace net
+
+#endif  // NET_REPORTING_REPORTING_SERVICE_H_