Update ServiceWorker event handled status histogram

content/browser/service_worker/service_worker_version.cc

 // Copyright 2013 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.
 
 #include "content/browser/service_worker/service_worker_version.h"
 
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 378 matching lines @@
 
 }  // namespace
 
 const int ServiceWorkerVersion::kStartWorkerTimeoutMinutes = 5;
 const int ServiceWorkerVersion::kRequestTimeoutMinutes = 5;
 
 class ServiceWorkerVersion::Metrics {
  public:
   Metrics() {}
   ~Metrics() {
-    ServiceWorkerMetrics::RecordEventStatus(fired_events, handled_events);
+    ServiceWorkerMetrics::RecordPerWorkerEventHandledStatus(fired_events,
+                                                            handled_events);
   }
 
-  void RecordEventStatus(bool handled) {
+  void RecordEventHandledStatus(bool handled) {
+    ServiceWorkerMetrics::RecordEventHandledStatus(handled);
     ++fired_events;
     if (handled)
       ++handled_events;
   }
 
  private:
   size_t fired_events = 0;
   size_t handled_events = 0;
   DISALLOW_COPY_AND_ASSIGN(Metrics);
 };
@@ skipping 909 matching lines @@
                "ServiceWorkerVersion::OnFetchEventFinished",
                "Request id", request_id);
   FetchCallback* callback = fetch_callbacks_.Lookup(request_id);
   if (!callback) {
     NOTREACHED() << "Got unexpected message: " << request_id;
     return;
   }
 
   // TODO(kinuko): Record other event statuses too.
   const bool handled = (result == SERVICE_WORKER_FETCH_EVENT_RESULT_RESPONSE);
-  metrics_->RecordEventStatus(handled);
+  metrics_->RecordEventHandledStatus(handled);
 
   scoped_refptr<ServiceWorkerVersion> protect(this);
   callback->Run(SERVICE_WORKER_OK, result, response);
   RemoveCallbackAndStopIfRedundant(&fetch_callbacks_, request_id);
 }
 
 void ServiceWorkerVersion::OnSyncEventFinished(
     int request_id,
     blink::WebServiceWorkerEventResult result) {
   TRACE_EVENT1("ServiceWorker",
@@ skipping 696 matching lines @@
         return SERVICE_WORKER_ERROR_ABORT;
       default:
         return SERVICE_WORKER_ERROR_NETWORK;
     }
   }
 
   return default_code;
 }
 
 }  // namespace content