ActiveScriptWrappable: GC wrappers in detached ExecutionContexts.

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 200 matching lines @@
 static void setInvalidStateErrorForSendMethod(ExceptionState& exceptionState) {
   exceptionState.throwDOMException(InvalidStateError,
                                    "Still in CONNECTING state.");
 }
 
 const char* DOMWebSocket::subprotocolSeperator() {
   return ", ";
 }
 
 DOMWebSocket::DOMWebSocket(ExecutionContext* context)
-    : ActiveScriptWrappable(this),
+    : ActiveScriptWrappable<DOMWebSocket>(this),
       SuspendableObject(context),
       m_state(kConnecting),
       m_bufferedAmount(0),
       m_consumedBufferedAmount(0),
       m_bufferedAmountAfterClose(0),
       m_binaryType(BinaryTypeBlob),
       m_binaryTypeChangesAfterOpen(0),
       m_subprotocol(""),
       m_extensions(""),
       m_eventQueue(EventQueue::create(this)),
@@ skipping 628 matching lines @@
 
 DEFINE_TRACE(DOMWebSocket) {
   visitor->trace(m_channel);
   visitor->trace(m_eventQueue);
   WebSocketChannelClient::trace(visitor);
   EventTargetWithInlineData::trace(visitor);
   SuspendableObject::trace(visitor);
 }
 
 }  // namespace blink