Add implementation of PermissionReporter

chrome/browser/safe_browsing/permission_reporter.h

 // Copyright 2016 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 CHROME_BROWSER_SAFE_BROWSING_PERMISSION_REPORTER_H_
 #define CHROME_BROWSER_SAFE_BROWSING_PERMISSION_REPORTER_H_
 
 #include <string>
 
 #include "chrome/browser/permissions/permission_uma_util.h"
 #include "url/gurl.h"
 
 namespace net {
+class ReportSender;
 class URLRequestContext;
 }  // namespace net
 
 namespace safe_browsing {
 
 // Provides functionality for building and serializing reports about permissions
 // to a report collection server.
 class PermissionReporter {
  public:
   // Creates a permission reporter that will send permission reports to
   // the SafeBrowsing permission action server, using |request_context| as the
   // context for the reports.
   explicit PermissionReporter(net::URLRequestContext* request_context);
 
   ~PermissionReporter();
 
   // Sends a serialized permission report to the report collection server.
   // The permission report includes |origin| as the origin of
   // the site requesting permission, |permission| as the type of permission
   // requested, and |action| as the action taken. The report will be serialized
   // using protobuf defined in
   // //src/chrome/common/safe_browsing/permission_report.proto
   void SendReport(const GURL& origin,
                   content::PermissionType permission,
                   PermissionAction action);
 
+ private:
+  friend class PermissionReporterTest;
+
+  // Used by tests. This constructor allows tests to have access to the
+  // ReportSender.
+  explicit PermissionReporter(std::unique_ptr<net::ReportSender> report_sender);
+
   // Builds and serializes a permission report with |origin| as the origin of
   // the site requesting permission, |permission| as the type of permission
   // requested, and |action| as the action taken. The serialized report is
   // written into |output|. Returns true if the serialization was successful and
   // false otherwise.
   static bool BuildReport(const GURL& origin,
                           content::PermissionType permission,
                           PermissionAction action,
                           std::string* output);
 
- private:
+  std::unique_ptr<net::ReportSender> permission_report_sender_;
+
   DISALLOW_COPY_AND_ASSIGN(PermissionReporter);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_PERMISSION_REPORTER_H_