Service Worker event dispatcher for Background Fetch

content/browser/service_worker/service_worker_metrics.cc

Index: content/browser/service_worker/service_worker_metrics.cc
diff --git a/content/browser/service_worker/service_worker_metrics.cc b/content/browser/service_worker/service_worker_metrics.cc
index a9a5e91de3a10ca63e2537969fe053c3eaae1003..c64657e65c755151a2e21de6866abbb3c830d161 100644
--- a/content/browser/service_worker/service_worker_metrics.cc
+++ b/content/browser/service_worker/service_worker_metrics.cc
@@ -82,6 +82,10 @@ std::string EventTypeToSuffix(ServiceWorkerMetrics::EventType event_type) {
       return "_EXTERNAL_REQUEST";
     case ServiceWorkerMetrics::EventType::PAYMENT_REQUEST:
       return "_PAYMENT_REQUEST";
+    case ServiceWorkerMetrics::EventType::BACKGROUND_FETCH_ABORT:
+      return "_BACKGROUND_FETCH_ABORT";
+    case ServiceWorkerMetrics::EventType::BACKGROUND_FETCH_CLICK:
+      return "_BACKGROUND_FETCH_CLICK";
     case ServiceWorkerMetrics::EventType::NUM_TYPES:
       NOTREACHED() << static_cast<int>(event_type);
   }
@@ -357,6 +361,10 @@ const char* ServiceWorkerMetrics::EventTypeToString(EventType event_type) {
       return "External Request";
     case EventType::PAYMENT_REQUEST:
       return "Payment Request";
+    case EventType::BACKGROUND_FETCH_ABORT:
+      return "Background Fetch Abort";
+    case EventType::BACKGROUND_FETCH_CLICK:
+      return "Background Fetch Click";
     case EventType::NUM_TYPES:
       break;
   }
@@ -687,6 +695,14 @@ void ServiceWorkerMetrics::RecordEventDuration(EventType event,
       UMA_HISTOGRAM_MEDIUM_TIMES("ServiceWorker.PaymentRequestEvent.Time",
                                  time);
       break;
+    case EventType::BACKGROUND_FETCH_ABORT:
+      UMA_HISTOGRAM_MEDIUM_TIMES("ServiceWorker.BackgroundFetchAbortEvent.Time",
+                                 time);
+      break;
+    case EventType::BACKGROUND_FETCH_CLICK:
+      UMA_HISTOGRAM_MEDIUM_TIMES("ServiceWorker.BackgroundFetchClickEvent.Time",
+                                 time);
+      break;
     // Those navigation hints should not be sent as request events.
     case EventType::NAVIGATION_HINT_LINK_MOUSE_DOWN:
     case EventType::NAVIGATION_HINT_LINK_TAP_UNCONFIRMED: