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

third_party/WebKit/Source/modules/fetch/Request.h

Index: third_party/WebKit/Source/modules/fetch/Request.h
diff --git a/third_party/WebKit/Source/modules/fetch/Request.h b/third_party/WebKit/Source/modules/fetch/Request.h
index da5d39f809868185248e63c0ac2d7a7a307a720a..4da4056fe1e4c28ab9bd3dfc2a0dec3e1225f30c 100644
--- a/third_party/WebKit/Source/modules/fetch/Request.h
+++ b/third_party/WebKit/Source/modules/fetch/Request.h
@@ -40,8 +40,8 @@ public:
     static Request* create(ScriptState*, const String&, const Dictionary&, ExceptionState&);
     static Request* create(ScriptState*, Request*, ExceptionState&);
     static Request* create(ScriptState*, Request*, const Dictionary&, ExceptionState&);
-    static Request* create(ExecutionContext*, FetchRequestData*);
-    static Request* create(ExecutionContext*, const WebServiceWorkerRequest&);
+    static Request* create(ScriptState*, FetchRequestData*);
+    static Request* create(ScriptState*, const WebServiceWorkerRequest&);
 
     // From Request.idl:
     String method() const;
@@ -56,23 +56,21 @@ public:
     String integrity() const;
 
     // From Request.idl:
-    Request* clone(ExceptionState&);
+    Request* clone(ScriptState*, ExceptionState&);
 
-    FetchRequestData* passRequestData();
+    FetchRequestData* passRequestData(ScriptState*);
     void populateWebServiceWorkerRequest(WebServiceWorkerRequest&) const;
     bool hasBody() const;
     BodyStreamBuffer* bodyBuffer() override { return m_request->buffer(); }
     const BodyStreamBuffer* bodyBuffer() const override { return m_request->buffer(); }
     PassRefPtr<EncodedFormData> attachedCredential() const { return m_request->attachedCredential(); }
 
-    void stop() override;
-
     DECLARE_VIRTUAL_TRACE();
 
 private:
-    Request(ExecutionContext*, FetchRequestData*);
-    Request(ExecutionContext*, const WebServiceWorkerRequest&);
-    Request(ExecutionContext*, FetchRequestData*, Headers*);
+    Request(ScriptState*, FetchRequestData*, Headers*);
+    Request(ScriptState*, FetchRequestData*);
+    Request(ScriptState*, const WebServiceWorkerRequest&);
 
     const FetchRequestData* request() const { return m_request; }
     static Request* createRequestWithRequestOrString(ScriptState*, Request*, const String&, RequestInit&, ExceptionState&);