[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

third_party/WebKit/Source/modules/websockets/DOMWebSocket.cpp

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 459 matching lines @@
     return;
   }
   recordSendTypeHistogram(WebSocketSendTypeArrayBuffer);
   recordSendMessageSizeHistogram(WebSocketSendTypeArrayBuffer,
                                  binaryData->byteLength());
   DCHECK(m_channel);
   m_bufferedAmount += binaryData->byteLength();
   m_channel->send(*binaryData, 0, binaryData->byteLength());
 }
 
-void DOMWebSocket::send(DOMArrayBufferView* arrayBufferView,
+void DOMWebSocket::send(const NotShared<DOMArrayBufferView>& arrayBufferView,
                         ExceptionState& exceptionState) {
   NETWORK_DVLOG(1) << "WebSocket " << this << " send() Sending ArrayBufferView "
-                   << arrayBufferView;
-  DCHECK(arrayBufferView);
+                   << arrayBufferView.view();
+  DCHECK(arrayBufferView.view());
   if (m_state == kConnecting) {
     setInvalidStateErrorForSendMethod(exceptionState);
     return;
   }
   if (m_state == kClosing || m_state == kClosed) {
-    updateBufferedAmountAfterClose(arrayBufferView->byteLength());
+    updateBufferedAmountAfterClose(arrayBufferView.view()->byteLength());
     return;
   }
   recordSendTypeHistogram(WebSocketSendTypeArrayBufferView);
   recordSendMessageSizeHistogram(WebSocketSendTypeArrayBufferView,
-                                 arrayBufferView->byteLength());
+                                 arrayBufferView.view()->byteLength());
   DCHECK(m_channel);
-  m_bufferedAmount += arrayBufferView->byteLength();
-  m_channel->send(*arrayBufferView->buffer(), arrayBufferView->byteOffset(),
-                  arrayBufferView->byteLength());
+  m_bufferedAmount += arrayBufferView.view()->byteLength();
+  m_channel->send(*arrayBufferView.view()->buffer(),
+                  arrayBufferView.view()->byteOffset(),
+                  arrayBufferView.view()->byteLength());
 }
 
 void DOMWebSocket::send(Blob* binaryData, ExceptionState& exceptionState) {
   NETWORK_DVLOG(1) << "WebSocket " << this << " send() Sending Blob "
                    << binaryData->uuid();
   DCHECK(binaryData);
   if (m_state == kConnecting) {
     setInvalidStateErrorForSendMethod(exceptionState);
     return;
   }
@@ skipping 354 matching lines @@
 
 DEFINE_TRACE(DOMWebSocket) {
   visitor->trace(m_channel);
   visitor->trace(m_eventQueue);
   WebSocketChannelClient::trace(visitor);
   EventTargetWithInlineData::trace(visitor);
   SuspendableObject::trace(visitor);
 }
 
 }  // namespace blink