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* Copyright (C) 2008 Apple Inc. All Rights Reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "ContextDestructionObserver.h"
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#include "ScriptExecutionContext.h"
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#include "WebCoreMemoryInstrumentation.h"
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ContextDestructionObserver::ContextDestructionObserver(ScriptExecutionContext* scriptExecutionContext)
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: m_scriptExecutionContext(0)
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observeContext(scriptExecutionContext);
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ContextDestructionObserver::~ContextDestructionObserver()
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void ContextDestructionObserver::observeContext(ScriptExecutionContext* scriptExecutionContext)
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if (m_scriptExecutionContext) {
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ASSERT(m_scriptExecutionContext->isContextThread());
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m_scriptExecutionContext->willDestroyDestructionObserver(this);
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m_scriptExecutionContext = scriptExecutionContext;
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if (m_scriptExecutionContext) {
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ASSERT(m_scriptExecutionContext->isContextThread());
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m_scriptExecutionContext->didCreateDestructionObserver(this);
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void ContextDestructionObserver::contextDestroyed()
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m_scriptExecutionContext = 0;
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} // namespace WebCore