Add another body function returning a V8 Extra ReadableStream to Response

third_party/WebKit/Source/modules/fetch/Body.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 Body_h
 #define Body_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class BodyStreamBuffer;
 class ExecutionContext;
@@ skipping 20 matching lines @@
     ~Body() override { }
 
     ScriptPromise arrayBuffer(ScriptState*);
     ScriptPromise blob(ScriptState*);
     ScriptPromise formData(ScriptState*);
     ScriptPromise json(ScriptState*);
     ScriptPromise text(ScriptState*);
     ReadableByteStream* bodyWithUseCounter();
     virtual BodyStreamBuffer* bodyBuffer() = 0;
     virtual const BodyStreamBuffer* bodyBuffer() const = 0;
+    ScriptValue v8ExtraStreamBody(ScriptState*);
 
     virtual bool bodyUsed();
     bool isBodyLocked();
 
     // ActiveScriptWrappable override.
     bool hasPendingActivity() const override;
 
     DEFINE_INLINE_VIRTUAL_TRACE()
     {
         ActiveDOMObject::trace(visitor);
@@ skipping 12 matching lines @@
     // an empty ScriptPromise if the consumption may proceed, and a
     // ScriptPromise rejected with a TypeError if it ought to be blocked.
     ScriptPromise rejectInvalidConsumption(ScriptState*);
 
     bool m_opaque;
 };
 
 } // namespace blink
 
 #endif // Body_h