Make Response::body return v8-extra based stream behind flag

third_party/WebKit/Source/modules/serviceworkers/RespondWithObserver.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 RespondWithObserver_h
 #define RespondWithObserver_h
 
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/events/EventTarget.h"
 #include "modules/ModulesExport.h"
@@ skipping 35 matching lines @@
     RespondWithObserver(ExecutionContext*, int eventID, const KURL& requestURL, WebURLRequest::FetchRequestMode, WebURLRequest::FrameType, WebURLRequest::RequestContext);
 
 private:
     class ThenFunction;
 
     int m_eventID;
     KURL m_requestURL;
     WebURLRequest::FetchRequestMode m_requestMode;
     WebURLRequest::FrameType m_frameType;
     WebURLRequest::RequestContext m_requestContext;
+    RefPtr<ScriptState> m_scriptState;

[tyoshino (SeeGerritForStatus), 2016/04/22 07:53:01]

for what?

[yhirano, 2016/04/22 08:04:42]

It's no long used. Deleted.

 
     enum State { Initial, Pending, Done };
     State m_state;
 };
 
 } // namespace blink
 
 #endif // RespondWithObserver_h