[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

third_party/WebKit/Source/modules/webaudio/WaveShaperNode.cpp

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 74 matching lines @@
     exceptionState.throwDOMException(
         InvalidAccessError,
         ExceptionMessages::indexExceedsMinimumBound<unsigned>("curve length",
                                                               curveLength, 2));
     return;
   }
 
   getWaveShaperProcessor()->setCurve(curveData, curveLength);
 }
 
-void WaveShaperNode::setCurve(DOMFloat32Array* curve,
+void WaveShaperNode::setCurve(NotShared<DOMFloat32Array> curve,
                               ExceptionState& exceptionState) {
   DCHECK(isMainThread());
 
-  if (curve)
-    setCurveImpl(curve->data(), curve->length(), exceptionState);
+  if (curve.view())
+    setCurveImpl(curve.view()->data(), curve.view()->length(), exceptionState);
   else
     setCurveImpl(nullptr, 0, exceptionState);
 }
 
 void WaveShaperNode::setCurve(const Vector<float>& curve,
                               ExceptionState& exceptionState) {
   DCHECK(isMainThread());
 
   setCurveImpl(curve.data(), curve.size(), exceptionState);
 }
 
-DOMFloat32Array* WaveShaperNode::curve() {
+NotShared<DOMFloat32Array> WaveShaperNode::curve() {
   Vector<float>* curve = getWaveShaperProcessor()->curve();
   if (!curve)
-    return nullptr;
+    return NotShared<DOMFloat32Array>(nullptr);
 
   unsigned size = curve->size();
   RefPtr<WTF::Float32Array> newCurve = WTF::Float32Array::create(size);
 
   memcpy(newCurve->data(), curve->data(), sizeof(float) * size);
 
-  return DOMFloat32Array::create(newCurve.release());
+  return NotShared<DOMFloat32Array>(
+      DOMFloat32Array::create(newCurve.release()));
 }
 
 void WaveShaperNode::setOversample(const String& type) {
   DCHECK(isMainThread());
 
   // This is to synchronize with the changes made in
   // AudioBasicProcessorNode::checkNumberOfChannelsForInput() where we can
   // initialize() and uninitialize().
   BaseAudioContext::AutoLocker contextLocker(context());
 
@@ skipping 19 matching lines @@
       return "2x";
     case WaveShaperProcessor::OverSample4x:
       return "4x";
     default:
       ASSERT_NOT_REACHED();
       return "none";
   }
 }
 
 }  // namespace blink