Prevent SharedArrayBuffer views from being used in bindings

third_party/WebKit/Source/core/dom/FlexibleArrayBufferView.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 FlexibleArrayBufferView_h
 #define FlexibleArrayBufferView_h
 
 #include "core/CoreExport.h"
 #include "core/dom/DOMArrayBufferView.h"
 #include "platform/heap/Handle.h"
@@ skipping 15 matching lines @@
   }
 
   void clear() {
     m_full = nullptr;
     m_smallData = nullptr;
     m_smallLength = 0;
   }
 
   bool isEmpty() const { return !m_full && !m_smallData; }
   bool isFull() const { return m_full; }
+  bool isShared() const { return m_full && m_full->isShared(); }
 
   DOMArrayBufferView* full() const {
     DCHECK(isFull());
     return m_full;
   }
 
   // WARNING: The pointer returned by baseAddressMaybeOnStack() may point to
   // temporary storage that is only valid during the life-time of the
   // FlexibleArrayBufferView object.
   void* baseAddressMaybeOnStack() const {
@@ skipping 16 matching lines @@
  private:
   Member<DOMArrayBufferView> m_full;
 
   void* m_smallData;
   size_t m_smallLength;
 };
 
 }  // namespace blink
 
 #endif  // FlexibleArrayBufferView_h