[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

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

Index: third_party/WebKit/Source/modules/webaudio/AnalyserNode.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/AnalyserNode.cpp b/third_party/WebKit/Source/modules/webaudio/AnalyserNode.cpp
index 3e3e9e79c715dea4bd1c91717a440aaca9d88abe..81e7d078935d680392135c56d40ef4a57564e33d 100644
--- a/third_party/WebKit/Source/modules/webaudio/AnalyserNode.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/AnalyserNode.cpp
@@ -262,20 +262,38 @@ 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