Make DOMArrayBuffer::Transfer neuter v8::ArrayBuffers

third_party/WebKit/Source/core/dom/DOMArrayBuffer.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 DOMArrayBuffer_h
 #define DOMArrayBuffer_h
 
 #include "core/CoreExport.h"
 #include "core/dom/DOMArrayBufferBase.h"
 #include "platform/wtf/typed_arrays/ArrayBuffer.h"
@@ skipping 23 matching lines @@
   static DOMArrayBuffer* CreateUninitializedOrNull(unsigned num_elements,
                                                    unsigned element_byte_size);
 
   DOMArrayBuffer* Slice(int begin, int end) const {
     return Create(Buffer()->Slice(begin, end));
   }
   DOMArrayBuffer* Slice(int begin) const {
     return Create(Buffer()->Slice(begin));
   }
 
+  bool IsNeuterable(v8::Isolate*);
+
+  // Transfer the ArrayBuffer if it is neuterable, otherwise make a copy and
+  // transfer that.
+  bool Transfer(v8::Isolate*, WTF::ArrayBufferContents& result);
+
   v8::Local<v8::Object> Wrap(v8::Isolate*,
                              v8::Local<v8::Object> creation_context) override;
 
  private:
   explicit DOMArrayBuffer(PassRefPtr<WTF::ArrayBuffer> buffer)
       : DOMArrayBufferBase(std::move(buffer)) {}
 };
 
 }  // namespace blink
 
 #endif  // DOMArrayBuffer_h