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

third_party/WebKit/Source/modules/cachestorage/CacheStorage.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/cachestorage/CacheStorage.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
@@ skipping 111 matching lines @@
 class CacheStorage::MatchCallbacks : public WebServiceWorkerCacheStorage::CacheStorageMatchCallbacks {
     WTF_MAKE_NONCOPYABLE(MatchCallbacks);
 public:
     explicit MatchCallbacks(ScriptPromiseResolver* resolver)
         : m_resolver(resolver) { }
 
     void onSuccess(const WebServiceWorkerResponse& webResponse) override
     {
         if (!m_resolver->getExecutionContext() || m_resolver->getExecutionContext()->activeDOMObjectsAreStopped())
             return;
-        m_resolver->resolve(Response::create(m_resolver->getScriptState()->getExecutionContext(), webResponse));
+        m_resolver->resolve(Response::create(m_resolver->getScriptState(), webResponse));
         m_resolver.clear();
     }
 
     void onError(WebServiceWorkerCacheError reason) override
     {
         if (!m_resolver->getExecutionContext() || m_resolver->getExecutionContext()->activeDOMObjectsAreStopped())
             return;
         if (reason == WebServiceWorkerCacheErrorNotFound)
             m_resolver->resolve();
         else
@@ skipping 197 matching lines @@
     m_webCacheStorage.clear();
 }
 
 DEFINE_TRACE(CacheStorage)
 {
     visitor->trace(m_scopedFetcher);
     visitor->trace(m_nameToCacheMap);
 }
 
 } // namespace blink