[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

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

 /*
  * Copyright (C) 2010, 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 244 matching lines @@
 
 void AnalyserNode::setSmoothingTimeConstant(double smoothingTime,
                                             ExceptionState& exceptionState) {
   analyserHandler().setSmoothingTimeConstant(smoothingTime, exceptionState);
 }
 
 double AnalyserNode::smoothingTimeConstant() const {
   return analyserHandler().smoothingTimeConstant();
 }
 
-void AnalyserNode::getFloatFrequencyData(DOMFloat32Array* array) {
-  analyserHandler().getFloatFrequencyData(array, context()->currentTime());
+void AnalyserNode::getFloatFrequencyData(
+    const MaybeShared<DOMFloat32Array>& array) {
+  // TODO(binji): Throw exception?
+  if (array.isShared()) {
+    analyserHandler().getFloatFrequencyData(array.viewNotShared(),
+                                            context()->currentTime());
+  }
 }
 
-void AnalyserNode::getByteFrequencyData(DOMUint8Array* array) {
-  analyserHandler().getByteFrequencyData(array, context()->currentTime());
+void AnalyserNode::getByteFrequencyData(
+    const MaybeShared<DOMUint8Array>& array) {
+  // TODO(binji): Throw exception?
+  if (array.isShared()) {
+    analyserHandler().getByteFrequencyData(array.viewNotShared(),
+                                           context()->currentTime());
+  }
 }
 
-void AnalyserNode::getFloatTimeDomainData(DOMFloat32Array* array) {
-  analyserHandler().getFloatTimeDomainData(array);
+void AnalyserNode::getFloatTimeDomainData(
+    const MaybeShared<DOMFloat32Array>& array) {
+  // TODO(binji): Throw exception?
+  if (array.isShared()) {
+    analyserHandler().getFloatTimeDomainData(array.viewNotShared());
+  }
 }
 
-void AnalyserNode::getByteTimeDomainData(DOMUint8Array* array) {
-  analyserHandler().getByteTimeDomainData(array);
+void AnalyserNode::getByteTimeDomainData(
+    const MaybeShared<DOMUint8Array>& array) {
+  // TODO(binji): Throw exception?
+  if (array.isShared()) {
+    analyserHandler().getByteTimeDomainData(array.viewNotShared());
+  }
 }
 
 }  // namespace blink