[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

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

Index: third_party/WebKit/Source/modules/webaudio/AudioParam.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/AudioParam.cpp b/third_party/WebKit/Source/modules/webaudio/AudioParam.cpp
index e1eb9bebba9a0c8efc9e94fb9d0eb479c77357cc..79a63c7e576aa5a62bbe563e3a70ab85c4a91944 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioParam.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/AudioParam.cpp
@@ -467,17 +467,18 @@ AudioParam* AudioParam::setTargetAtTime(float target,
   return this;
 }
 
-AudioParam* AudioParam::setValueCurveAtTime(DOMFloat32Array* curve,
-                                            double time,
-                                            double duration,
-                                            ExceptionState& exceptionState) {
-  float* curveData = curve->data();
+AudioParam* AudioParam::setValueCurveAtTime(
+    const NotShared<DOMFloat32Array>& curve,
+    double time,
+    double duration,
+    ExceptionState& exceptionState) {
+  float* curveData = curve.view()->data();
   float min = minValue();
   float max = maxValue();
 
   // First, find any non-finite value in the curve and throw an exception if
   // there are any.
-  for (unsigned k = 0; k < curve->length(); ++k) {
+  for (unsigned k = 0; k < curve.view()->length(); ++k) {
     float value = curveData[k];
 
     if (!std::isfinite(value)) {
@@ -492,7 +493,7 @@ AudioParam* AudioParam::setValueCurveAtTime(DOMFloat32Array* curve,
   // Second, find the first value in the curve (if any) that is outside the
   // nominal range.  It's probably not necessary to produce a warning on every
   // value outside the nominal range.
-  for (unsigned k = 0; k < curve->length(); ++k) {
+  for (unsigned k = 0; k < curve.view()->length(); ++k) {
     float value = curveData[k];
 
     if (value < min || value > max) {
@@ -501,7 +502,7 @@ AudioParam* AudioParam::setValueCurveAtTime(DOMFloat32Array* curve,
     }
   }
 
-  handler().timeline().setValueCurveAtTime(curve, time, duration,
+  handler().timeline().setValueCurveAtTime(curve.view(), time, duration,
                                            exceptionState);
 
   // We could update the histogram with every value in the curve, due to