--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/dom/ActiveDOMObject.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2008 Apple 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
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ *
+ */
+
+#include "config.h"
+#include "ActiveDOMObject.h"
+
+#include "ScriptExecutionContext.h"
+#include "WorkerContext.h"
+#include "WorkerThread.h"
+
+namespace WebCore {
+
+ActiveDOMObject::ActiveDOMObject(ScriptExecutionContext* scriptExecutionContext, void* upcastPointer)
+    : m_scriptExecutionContext(scriptExecutionContext)
+    , m_pendingActivityCount(0)
+{
+#if ENABLE(WORKERS)
+    ASSERT((m_scriptExecutionContext->isDocument() && isMainThread())
+        || (m_scriptExecutionContext->isWorkerContext() && currentThread() == static_cast<WorkerContext*>(m_scriptExecutionContext)->thread()->threadID()));
+#endif
+
+    m_scriptExecutionContext->createdActiveDOMObject(this, upcastPointer);
+}
+
+ActiveDOMObject::~ActiveDOMObject()
+{
+    if (m_scriptExecutionContext) {
+#if ENABLE(WORKERS)
+        ASSERT((m_scriptExecutionContext->isDocument() && isMainThread())
+            || (m_scriptExecutionContext->isWorkerContext() && currentThread() == static_cast<WorkerContext*>(m_scriptExecutionContext)->thread()->threadID()));
+#endif
+
+        m_scriptExecutionContext->destroyedActiveDOMObject(this);
+    }
+}
+
+bool ActiveDOMObject::hasPendingActivity() const
+{
+    return m_pendingActivityCount;
+}
+
+void ActiveDOMObject::contextDestroyed()
+{
+    m_scriptExecutionContext = 0;
+}
+
+bool ActiveDOMObject::canSuspend() const
+{
+    return false;
+}
+
+void ActiveDOMObject::suspend()
+{
+}
+
+void ActiveDOMObject::resume()
+{
+}
+
+void ActiveDOMObject::stop()
+{
+}
+
+} // namespace WebCore