[WIP] RespondWithObserver

third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h

Index: third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
diff --git a/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h b/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
index 99ba37f85c0409f7035b58d4c7dd2bf66da3aa05..5dc0828137a337e94117cd41b27810eddbee8e82 100644
--- a/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
+++ b/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
@@ -43,6 +43,7 @@
 
 namespace blink {
 
+struct WebPaymentAppResponse;
 struct WebServiceWorkerClientQueryOptions;
 class WebDataSource;
 class WebServiceWorkerContextProxy;
@@ -148,6 +149,10 @@ class WebServiceWorkerContextClient {
   virtual void respondToFetchEvent(int fetchEventID,
                                    const WebServiceWorkerResponse& response,
                                    double eventDispatchTime) {}
+  virtual void respondToPaymentRequestEvent(
+      int eventId,
+      const WebPaymentAppResponse& response,
+      double eventDispatchTime) {}
   virtual void didHandleFetchEvent(int fetchEventID,
                                    WebServiceWorkerEventResult result,
                                    double eventDispatchTime) {}