[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

third_party/WebKit/Source/modules/webmidi/MIDIOutput.cpp

Index: third_party/WebKit/Source/modules/webmidi/MIDIOutput.cpp
diff --git a/third_party/WebKit/Source/modules/webmidi/MIDIOutput.cpp b/third_party/WebKit/Source/modules/webmidi/MIDIOutput.cpp
index 576b0adc19411c9eca911e46b2ddb62fa9a50a3c..8c8fdd27ddf6b9fa0be0bb4751cdfd231c39e893 100644
--- a/third_party/WebKit/Source/modules/webmidi/MIDIOutput.cpp
+++ b/third_party/WebKit/Source/modules/webmidi/MIDIOutput.cpp
@@ -221,10 +221,10 @@ MIDIOutput::MIDIOutput(MIDIAccess* access,
 
 MIDIOutput::~MIDIOutput() {}
 
-void MIDIOutput::send(DOMUint8Array* array,
+void MIDIOutput::send(const NotShared<DOMUint8Array>& array,
                       double timestamp,
                       ExceptionState& exceptionState) {
-  DCHECK(array);
+  DCHECK(array.view());
 
   if (timestamp == 0.0)
     timestamp = now(getExecutionContext());
@@ -233,10 +233,11 @@ void MIDIOutput::send(DOMUint8Array* array,
   // This should be performed even if |array| is invalid.
   open();
 
-  if (MessageValidator::validate(array, exceptionState,
-                                 midiAccess()->sysexEnabled()))
-    midiAccess()->sendMIDIData(m_portIndex, array->data(), array->length(),
-                               timestamp);
+  if (MessageValidator::validate(array.view(), exceptionState,
+                                 midiAccess()->sysexEnabled())) {
+    midiAccess()->sendMIDIData(m_portIndex, array.view()->data(),
+                               array.view()->length(), timestamp);
+  }
 }
 
 void MIDIOutput::send(Vector<unsigned> unsignedData,
@@ -260,11 +261,12 @@ void MIDIOutput::send(Vector<unsigned> unsignedData,
       arrayData[i] = unsignedData[i] & 0xff;
   }
 
-  send(array, timestamp, exceptionState);
+  send(NotShared<DOMUint8Array>(array), timestamp, exceptionState);
 }
 
-void MIDIOutput::send(DOMUint8Array* data, ExceptionState& exceptionState) {
-  DCHECK(data);
+void MIDIOutput::send(const NotShared<DOMUint8Array>& data,
+                      ExceptionState& exceptionState) {
+  DCHECK(data.view());
   send(data, 0.0, exceptionState);
 }