Add an IPC method for Blink to call RapporService::RecordSample()

components/rappor/rappor_service.h

 // Copyright 2014 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 COMPONENTS_RAPPOR_RAPPOR_SERVICE_H_
 #define COMPONENTS_RAPPOR_RAPPOR_SERVICE_H_
 
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/metrics/user_metrics.h"
 #include "base/timer/timer.h"
 #include "components/metrics/daily_event.h"
 #include "components/rappor/rappor_parameters.h"
 
 class PrefRegistrySimple;
 class PrefService;
 
 namespace net {
 class URLRequestContextGetter;
 }
@@ skipping 76 matching lines @@
                             const RapporParameters& parameters,
                             const std::string& sample);
 
   // Checks if the service has been started successfully.
   bool IsInitialized() const;
 
   // Called whenever the logging interval elapses to generate a new log of
   // reports and pass it to the uploader.
   void OnLogInterval();
 
+  void EnableRecordFromUserMetrics();
+  void OnUserMetricsCallback(
+      const std::string& metric,
+      const std::string& sample);
+
   // Finds a metric in the metrics_map_, creating it if it doesn't already
   // exist.
   RapporMetric* LookUpMetric(const std::string& metric_name,
                              const RapporParameters& parameters);
 
   // A weak pointer to the PrefService used to read and write preferences.
   PrefService* pref_service_;
 
   // A callback for testing if incognito mode is active;
   const base::Callback<bool(void)> is_incognito_callback_;
@@ skipping 13 matching lines @@
   // A private LogUploader instance for sending reports to the server.
   scoped_ptr<LogUploaderInterface> uploader_;
 
   // What reporting level of metrics are being reported.
   RecordingLevel recording_level_;
 
   // We keep all registered metrics in a map, from name to metric.
   // The map owns the metrics it contains.
   std::map<std::string, RapporMetric*> metrics_map_;
 
+  base::RapporCallback user_metrics_callback_;
+
   DISALLOW_COPY_AND_ASSIGN(RapporService);
 };
 
 }  // namespace rappor
 
 #endif  // COMPONENTS_RAPPOR_RAPPOR_SERVICE_H_