Make DOMArrayBuffer::Transfer neuter v8::ArrayBuffers

third_party/WebKit/Source/core/dom/DOMSharedArrayBuffer.h

 // Copyright 2015 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 DOMSharedArrayBuffer_h
 #define DOMSharedArrayBuffer_h
 
 #include "core/CoreExport.h"
 #include "core/dom/DOMArrayBufferBase.h"
 #include "platform/wtf/typed_arrays/ArrayBuffer.h"
@@ skipping 15 matching lines @@
   }
   static DOMSharedArrayBuffer* Create(const void* source,
                                       unsigned byte_length) {
     return Create(WTF::ArrayBuffer::CreateShared(source, byte_length));
   }
   static DOMSharedArrayBuffer* Create(WTF::ArrayBufferContents& contents) {
     DCHECK(contents.IsShared());
     return Create(WTF::ArrayBuffer::Create(contents));
   }
 
+  bool ShareContentsWith(WTF::ArrayBufferContents& result) {
+    return Buffer()->ShareContentsWith(result);
+  }
+
   v8::Local<v8::Object> Wrap(v8::Isolate*,
                              v8::Local<v8::Object> creation_context) override;
 
  private:
   explicit DOMSharedArrayBuffer(PassRefPtr<WTF::ArrayBuffer> buffer)
       : DOMArrayBufferBase(std::move(buffer)) {}
 };
 
 }  // namespace blink
 
 #endif  // DOMSharedArrayBuffer_h