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

content/browser/service_worker/service_worker_fetch_dispatcher.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_DISPATCHER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_DISPATCHER_H_
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/optional.h"
 #include "base/time/time.h"
 #include "content/browser/service_worker/service_worker_metrics.h"
 #include "content/common/content_export.h"
 #include "content/common/service_worker/service_worker_event_dispatcher.mojom.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/common/url_loader.mojom.h"
 #include "content/common/url_loader_factory.mojom.h"
 #include "content/public/common/resource_type.h"
+#include "mojo/public/cpp/system/data_pipe.h"
 #include "net/log/net_log_with_source.h"
 
 namespace net {
 class URLRequest;
 }  // namespace net
 
 namespace content {
 
 class ServiceWorkerVersion;
 
 // A helper class to dispatch fetch event to a service worker.
 class CONTENT_EXPORT ServiceWorkerFetchDispatcher {
  public:
   using FetchCallback =
       base::Callback<void(ServiceWorkerStatusCode,
                           ServiceWorkerFetchEventResult,
                           const ServiceWorkerResponse&,
+                          blink::mojom::ServiceWorkerStreamHandlePtr,
                           const scoped_refptr<ServiceWorkerVersion>&)>;
 
   ServiceWorkerFetchDispatcher(
       std::unique_ptr<ServiceWorkerFetchRequest> request,
       ServiceWorkerVersion* version,
       ResourceType resource_type,
       const base::Optional<base::TimeDelta>& timeout,
       const net::NetLogWithSource& net_log,
       const base::Closure& prepare_callback,
       const FetchCallback& fetch_callback);
@@ skipping 17 matching lines @@
 
   void DidWaitForActivation();
   void StartWorker();
   void DidStartWorker();
   void DidFailToStartWorker(ServiceWorkerStatusCode status);
   void DispatchFetchEvent();
   void DidFailToDispatch(ServiceWorkerStatusCode status);
   void DidFail(ServiceWorkerStatusCode status);
   void DidFinish(int request_id,
                  ServiceWorkerFetchEventResult fetch_result,
-                 const ServiceWorkerResponse& response);
+                 const ServiceWorkerResponse& response,
+                 blink::mojom::ServiceWorkerStreamHandlePtr stream_handle);

[falken, 2017/04/18 05:05:33]

body_as_stream?

[shimazu, 2017/04/19 05:49:46]

Done.

   void Complete(ServiceWorkerStatusCode status,
                 ServiceWorkerFetchEventResult fetch_result,
-                const ServiceWorkerResponse& response);
+                const ServiceWorkerResponse& response,
+                blink::mojom::ServiceWorkerStreamHandlePtr stream_handle);

[falken, 2017/04/18 05:05:33]

ditto

[shimazu, 2017/04/19 05:49:46]

Done.

 
   static void OnFetchEventFinished(
       ServiceWorkerVersion* version,
       int event_finish_id,
       scoped_refptr<URLLoaderAssets> url_loader_assets,
       ServiceWorkerStatusCode status,
       base::Time dispatch_event_time);
 
   ServiceWorkerMetrics::EventType GetEventType() const;
 
@@ skipping 11 matching lines @@
   mojom::FetchEventPreloadHandlePtr preload_handle_;
 
   base::WeakPtrFactory<ServiceWorkerFetchDispatcher> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerFetchDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_DISPATCHER_H_