[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

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

Index: third_party/WebKit/Source/modules/webaudio/WaveShaperNode.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/WaveShaperNode.cpp b/third_party/WebKit/Source/modules/webaudio/WaveShaperNode.cpp
index c4700f0921381d9658f2fff559b5dce1aa4f4078..de19944e4c82238c7ad3681e8df27840507b261e 100644
--- a/third_party/WebKit/Source/modules/webaudio/WaveShaperNode.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/WaveShaperNode.cpp
@@ -92,10 +92,17 @@ void WaveShaperNode::setCurveImpl(const float* curveData,
   getWaveShaperProcessor()->setCurve(curveData, curveLength);
 }
 
-void WaveShaperNode::setCurve(DOMFloat32Array* curve,
+void WaveShaperNode::setCurve(const MaybeShared<DOMFloat32Array>& maybeShared,
                               ExceptionState& exceptionState) {
   DCHECK(isMainThread());
 
+  if (maybeShared.isShared()) {
+    exceptionState.throwTypeError(
+        "curve should not be backed by a SharedArrayBuffer.");
+    return;
+  }
+  DOMFloat32Array* curve = maybeShared.viewNotShared();
+
   if (curve)
     setCurveImpl(curve->data(), curve->length(), exceptionState);
   else