Implement the BackgroundFetch{Fail,ed} Service Worker events

content/browser/background_fetch/background_fetch_event_dispatcher.h

Index: content/browser/background_fetch/background_fetch_event_dispatcher.h
diff --git a/content/browser/background_fetch/background_fetch_event_dispatcher.h b/content/browser/background_fetch/background_fetch_event_dispatcher.h
index 13bf614ed5fef1cb53686150547fb2989d90d04b..24a5933d4639d0baf45b94cb5b0b2b25ca36b530 100644
--- a/content/browser/background_fetch/background_fetch_event_dispatcher.h
+++ b/content/browser/background_fetch/background_fetch_event_dispatcher.h
@@ -17,6 +17,7 @@
 
 namespace content {
 
+struct BackgroundFetchSettledFetch;
 class ServiceWorkerContextWrapper;
 class ServiceWorkerRegistration;
 class ServiceWorkerVersion;
@@ -39,9 +40,6 @@ class CONTENT_EXPORT BackgroundFetchEventDispatcher {
       const scoped_refptr<ServiceWorkerContextWrapper>& service_worker_context);
   ~BackgroundFetchEventDispatcher();
 
-  // TODO(peter): Support the `backgroundfetched` event.
-  // TODO(peter): Support the `backgroundfetchfail` event.
-
   // Dispatches the `backgroundfetchabort` event, which indicates that an active
   // background fetch was aborted by the user or another external event.
   void DispatchBackgroundFetchAbortEvent(int64_t service_worker_registration_id,
@@ -57,6 +55,25 @@ class CONTENT_EXPORT BackgroundFetchEventDispatcher {
                                          mojom::BackgroundFetchState state,
                                          base::Closure finished_closure);
 
+  // Dispatches the `backgroundfetchfail` event, which indicates that a
+  // background fetch has finished with one or more failed fetches. The request-
+  // response pairs are included.
+  void DispatchBackgroundFetchFailEvent(
+      int64_t service_worker_registration_id,
+      const GURL& origin,
+      const std::string& tag,
+      const std::vector<BackgroundFetchSettledFetch>& fetches,
+      base::Closure finished_closure);
+
+  // Dispatches the `backgroundfetched` event, which indicates that a background
+  // fetch has successfully completed. The request-response pairs are included.
+  void DispatchBackgroundFetchedEvent(
+      int64_t service_worker_registration_id,
+      const GURL& origin,
+      const std::string& tag,
+      const std::vector<BackgroundFetchSettledFetch>& fetches,
+      base::Closure finished_closure);
+
  private:
   using ServiceWorkerLoadedCallback =
       base::Callback<void(scoped_refptr<ServiceWorkerVersion>, int)>;
@@ -108,6 +125,16 @@ class CONTENT_EXPORT BackgroundFetchEventDispatcher {
       mojom::BackgroundFetchState state,
       scoped_refptr<ServiceWorkerVersion> service_worker_version,
       int request_id);
+  static void DoDispatchBackgroundFetchFailEvent(
+      const std::string& tag,
+      const std::vector<BackgroundFetchSettledFetch>& fetches,
+      scoped_refptr<ServiceWorkerVersion> service_worker_version,
+      int request_id);
+  static void DoDispatchBackgroundFetchedEvent(
+      const std::string& tag,
+      const std::vector<BackgroundFetchSettledFetch>& fetches,
+      scoped_refptr<ServiceWorkerVersion> service_worker_version,
+      int request_id);
 
   scoped_refptr<ServiceWorkerContextWrapper> service_worker_context_;