Record some foreign fetch registration metrics.

content/browser/service_worker/service_worker_metrics.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 CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_METRICS_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_METRICS_H_
 
 #include <stddef.h>
 
 #include "base/macros.h"
@@ skipping 177 matching lines @@
   // Records the result of trying to stop a worker.
   static void RecordWorkerStopped(StopStatus status);
 
   // Records the time taken to successfully stop a worker.
   static void RecordStopWorkerTime(base::TimeDelta time);
 
   static void RecordActivateEventStatus(ServiceWorkerStatusCode status,
                                         bool is_shutdown);
   static void RecordInstallEventStatus(ServiceWorkerStatusCode status);
 
+  static void RecordForeignFetchRegistrationCount(size_t scope_count,
+                                                  size_t origin_count);
+
   // Records how much of dispatched events are handled while a Service
   // Worker is awake (i.e. after it is woken up until it gets stopped).
   static void RecordEventHandledRatio(EventType event,
                                       size_t handled_events,
                                       size_t fired_events);
 
   // Records the precision of the speculative launch of Service Workers for
   // each navigation hint type when the worker is stopped. If there was no
   // main/sub frame fetch event fired on the worker, |frame_fetch_event_fired|
   // is false. This means that the speculative launch wasn't helpful.
@@ skipping 54 matching lines @@
   static void RecordStartStatusAfterFailure(int failure_count,
                                             ServiceWorkerStatusCode status);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(ServiceWorkerMetrics);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_METRICS_H_