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

third_party/WebKit/Source/modules/fetch/GlobalFetch.cpp

 // 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.
 
 #include "modules/fetch/GlobalFetch.h"
 
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/UseCounter.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "modules/fetch/FetchManager.h"
@@ skipping 26 matching lines @@
             exceptionState.throwTypeError("The global scope is shutting down.");
             return ScriptPromise();
         }
 
         // "Let |r| be the associated request of the result of invoking the
         // initial value of Request as constructor with |input| and |init| as
         // arguments. If this throws an exception, reject |p| with it."
         Request* r = Request::create(scriptState, input, init, exceptionState);
         if (exceptionState.hadException())
             return ScriptPromise();
-        return m_fetchManager->fetch(scriptState, r->passRequestData());
+        return m_fetchManager->fetch(scriptState, r->passRequestData(scriptState));
     }
 
     DEFINE_INLINE_VIRTUAL_TRACE()
     {
         visitor->trace(m_fetchManager);
         ScopedFetcher::trace(visitor);
         Supplement<T>::trace(visitor);
     }
 
 private:
@@ skipping 34 matching lines @@
 }
 
 ScriptPromise GlobalFetch::fetch(ScriptState* scriptState, WorkerGlobalScope& worker, const RequestInfo& input, const Dictionary& init, ExceptionState& exceptionState)
 {
     // Note that UseCounter doesn't work with SharedWorker or ServiceWorker.
     UseCounter::count(worker.getExecutionContext(), UseCounter::Fetch);
     return ScopedFetcher::from(worker)->fetch(scriptState, input, init, exceptionState);
 }
 
 } // namespace blink