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

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

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 21 matching lines @@
 #define WebServiceWorkerContextClient_h
 
 #include <memory>
 
 #include "public/platform/WebMessagePortChannel.h"
 #include "public/platform/WebURL.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerClientsClaimCallbacks.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerClientsInfo.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerEventResult.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerSkipWaitingCallbacks.h"
+#include "public/platform/modules/serviceworker/WebServiceWorkerStreamHandle.h"
 #include "public/web/WebDevToolsAgentClient.h"
 #include "v8/include/v8.h"
 
 namespace blink {
 
 struct WebPaymentAppResponse;
 struct WebServiceWorkerClientQueryOptions;
 class WebServiceWorkerContextProxy;
 class WebServiceWorkerNetworkProvider;
 class WebServiceWorkerProvider;
@@ skipping 103 matching lines @@
       WebServiceWorkerEventResult result,
       double event_dispatch_time) {}
 
   // Called after ExtendableMessageEvent is handled by the ServiceWorker's
   // script context.
   virtual void DidHandleExtendableMessageEvent(
       int event_id,
       WebServiceWorkerEventResult result,
       double event_dispatch_time) {}
 
-  // ServiceWorker specific methods. respondFetchEvent will be called after
+  // ServiceWorker specific methods. RespondToFetchEvent* will be called after
   // FetchEvent returns a response by the ServiceWorker's script context, and
-  // didHandleFetchEvent will be called after the end of FetchEvent's
+  // DidHandleFetchEvent will be called after the end of FetchEvent's
   // lifecycle. When no response is provided, the browser should fallback to
-  // native fetch. EventIDs are the same with the ids passed from
-  // dispatchFetchEvent respectively.
-  virtual void RespondToFetchEvent(int fetch_event_id,
-                                   double event_dispatch_time) {}
+  // native fetch. |fetch_event_id|s are the same with the ids passed from
+  // DispatchFetchEvent respectively.

[falken, 2017/04/19 06:56:52]

maybe add an empty line to make clear that "Used when..." applies to
RespondToFetchEventWithResponse only, whereas the paragraph above applies to all
the RespondToFetch* functions.

[shimazu, 2017/04/19 08:32:16]

Done.

+  // Used when respondWith() is not called. Tells the browser to fall back to
+  // native fetch.
+  virtual void RespondToFetchEventWithNoResponse(int fetch_event_id,
+                                                 double event_dispatch_time) {}
+  // Responds to the fetch event with |response|.
   virtual void RespondToFetchEvent(int fetch_event_id,
                                    const WebServiceWorkerResponse& response,
                                    double event_dispatch_time) {}
+  // Responds to the fetch event with |response|, where body is
+  // |body_as_stream|.
+  virtual void RespondToFetchEventWithResponseStream(
+      int fetch_event_id,
+      const WebServiceWorkerResponse& response,
+      WebServiceWorkerStreamHandle* body_as_stream,
+      double event_dispatch_time) {}
   virtual void RespondToPaymentRequestEvent(
       int event_id,
       const WebPaymentAppResponse& response,
       double event_dispatch_time) {}
   virtual void DidHandleFetchEvent(int fetch_event_id,
                                    WebServiceWorkerEventResult result,
                                    double event_dispatch_time) {}
 
   // ServiceWorker specific method. Called after InstallEvent (dispatched
   // via WebServiceWorkerContextProxy) is handled by the ServiceWorker's
@@ skipping 114 matching lines @@
   // Called when the worker wants to register subscopes to handle via foreign
   // fetch. Will only be called while an install event is in progress.
   virtual void RegisterForeignFetchScopes(
       const WebVector<WebURL>& sub_scopes,
       const WebVector<WebSecurityOrigin>& origins) = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebServiceWorkerContextClient_h