Implement the BackgroundFetch{Fail,ed} Service Worker events

content/common/background_fetch/background_fetch_struct_traits.cc

Index: content/common/background_fetch/background_fetch_struct_traits.cc
diff --git a/content/common/background_fetch/background_fetch_struct_traits.cc b/content/common/background_fetch/background_fetch_struct_traits.cc
index 50dd6d654cb5c7fbe5d9be00f462bd9c704a6514..db88ad861e1e662d74f4bc330e7e0ff1623aaa34 100644
--- a/content/common/background_fetch/background_fetch_struct_traits.cc
+++ b/content/common/background_fetch/background_fetch_struct_traits.cc
@@ -4,6 +4,8 @@
 
 #include "content/common/background_fetch/background_fetch_struct_traits.h"
 
+#include "content/common/service_worker/service_worker_event_dispatcher.mojom.h"
+#include "content/common/service_worker/service_worker_messages.h"
 #include "mojo/public/cpp/bindings/array_data_view.h"
 
 namespace mojo {
@@ -36,6 +38,15 @@ bool StructTraits<blink::mojom::BackgroundFetchRegistrationDataView,
 }
 
 // static
+bool StructTraits<content::mojom::BackgroundFetchSettledFetchDataView,
+                  content::BackgroundFetchSettledFetch>::
+    Read(content::mojom::BackgroundFetchSettledFetchDataView data,
+         content::BackgroundFetchSettledFetch* fetch) {
+  return data.ReadRequest(&fetch->request) &&
+         data.ReadResponse(&fetch->response);
+}
+
+// static
 bool StructTraits<
     blink::mojom::IconDefinitionDataView,
     content::IconDefinition>::Read(blink::mojom::IconDefinitionDataView data,