ServiceWorker: Use mojo's data pipe for respondWith(stream)

content/renderer/service_worker/service_worker_context_client.h

Index: content/renderer/service_worker/service_worker_context_client.h
diff --git a/content/renderer/service_worker/service_worker_context_client.h b/content/renderer/service_worker/service_worker_context_client.h
index f22039ece12c591a05cea1e1a2fdb3f08aeb8224..36852487586d74ab62515f48d1b82e642ec88d1f 100644
--- a/content/renderer/service_worker/service_worker_context_client.h
+++ b/content/renderer/service_worker/service_worker_context_client.h
@@ -72,6 +72,9 @@ class ServiceWorkerContextClient : public blink::WebServiceWorkerContextClient,
   using FetchCallback =
       base::Callback<void(ServiceWorkerStatusCode,
                           base::Time /* dispatch_event_time */)>;
+  using PaymentRequestEventCallback =
+      base::Callback<void(ServiceWorkerStatusCode,
+                          base::Time /* dispatch_event_time */)>;
 
   // Returns a thread-specific client instance.  This does NOT create a
   // new instance.
@@ -159,9 +162,15 @@ class ServiceWorkerContextClient : public blink::WebServiceWorkerContextClient,
                              double event_dispatch_time) override;
   void RespondToFetchEvent(int fetch_event_id,
                            double event_dispatch_time) override;
-  void RespondToFetchEvent(int fetch_event_id,
-                           const blink::WebServiceWorkerResponse& response,
-                           double event_dispatch_time) override;
+  void RespondToFetchEventWithResponse(
+      int fetch_event_id,
+      const blink::WebServiceWorkerResponse& response,
+      double event_dispatch_time) override;
+  void RespondToFetchEventWithResponseStream(
+      int fetch_event_id,
+      const blink::WebServiceWorkerResponse& response,
+      blink::WebServiceWorkerStreamHandle* web_stream_handle,
+      double event_dispatch_time) override;
   void DidHandleFetchEvent(int fetch_event_id,
                            blink::WebServiceWorkerEventResult result,
                            double dispatch_event_time) override;
@@ -244,10 +253,12 @@ class ServiceWorkerContextClient : public blink::WebServiceWorkerContextClient,
   void DispatchExtendableMessageEvent(
       mojom::ExtendableMessageEventPtr event,
       const DispatchExtendableMessageEventCallback& callback) override;
-  void DispatchFetchEvent(int fetch_event_id,
-                          const ServiceWorkerFetchRequest& request,
-                          mojom::FetchEventPreloadHandlePtr preload_handle,
-                          const DispatchFetchEventCallback& callback) override;
+  void DispatchFetchEvent(
+      int fetch_event_id,
+      const ServiceWorkerFetchRequest& request,
+      mojom::FetchEventPreloadHandlePtr preload_handle,
+      mojom::ServiceWorkerFetchResponseCallbackPtr response_callback,
+      const DispatchFetchEventCallback& callback) override;
   void DispatchNotificationClickEvent(
       const std::string& notification_id,
       const PlatformNotificationData& notification_data,