Implement the BackgroundFetch{Fail,ed} Service Worker events

content/common/background_fetch/background_fetch_struct_traits.h

Index: content/common/background_fetch/background_fetch_struct_traits.h
diff --git a/content/common/background_fetch/background_fetch_struct_traits.h b/content/common/background_fetch/background_fetch_struct_traits.h
index c824610e2b29c85016fa5769692fa7500ff3737e..9c936c33196d62be3e8926027264b70c139c7acc 100644
--- a/content/common/background_fetch/background_fetch_struct_traits.h
+++ b/content/common/background_fetch/background_fetch_struct_traits.h
@@ -10,6 +10,7 @@
 
 #include "content/common/background_fetch/background_fetch_types.h"
 #include "content/common/content_export.h"
+#include "content/common/service_worker/service_worker_event_dispatcher.mojom.h"
 #include "mojo/public/cpp/bindings/struct_traits.h"
 #include "third_party/WebKit/public/platform/modules/background_fetch/background_fetch.mojom.h"
 
@@ -61,6 +62,23 @@ struct CONTENT_EXPORT
 };
 
 template <>
+struct CONTENT_EXPORT
+    StructTraits<content::mojom::BackgroundFetchSettledFetchDataView,
+                 content::BackgroundFetchSettledFetch> {
+  static const content::ServiceWorkerFetchRequest& request(
+      const content::BackgroundFetchSettledFetch& fetch) {
+    return fetch.request;
+  }
+  static const content::ServiceWorkerResponse& response(
+      const content::BackgroundFetchSettledFetch& fetch) {
+    return fetch.response;
+  }
+
+  static bool Read(content::mojom::BackgroundFetchSettledFetchDataView data,
+                   content::BackgroundFetchSettledFetch* definition);
+};
+
+template <>
 struct CONTENT_EXPORT StructTraits<blink::mojom::IconDefinitionDataView,
                                    content::IconDefinition> {
   static const std::string& src(const content::IconDefinition& definition) {