ServiceWorker: Add UMA for Activate and Install event results.

content/browser/service_worker/service_worker_metrics.cc

 // 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.
 
 #include "content/browser/service_worker/service_worker_metrics.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/user_metrics_action.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
@@ skipping 77 matching lines @@
 }
 
 void ServiceWorkerMetrics::RecordStartWorkerTime(const base::TimeDelta& time,
                                                  bool is_installed) {
   if (is_installed)
     UMA_HISTOGRAM_MEDIUM_TIMES("ServiceWorker.StartWorker.Time", time);
   else
     UMA_HISTOGRAM_MEDIUM_TIMES("ServiceWorker.StartNewWorker.Time", time);
 }
 
+void ServiceWorkerMetrics::RecordActivateEventStatus(
+    ServiceWorkerStatusCode status) {
+  UMA_HISTOGRAM_ENUMERATION("ServiceWorker.ActivateEventStatus", status,
+                            SERVICE_WORKER_ERROR_MAX_VALUE);
+}
+
+void ServiceWorkerMetrics::RecordInstallEventStatus(
+    ServiceWorkerStatusCode status) {
+  UMA_HISTOGRAM_ENUMERATION("ServiceWorker.InstallEventStatus", status,
+                            SERVICE_WORKER_ERROR_MAX_VALUE);
+}
+
 }  // namespace content