| Index: Source/core/dom/MutationObserverRegistration.cpp
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| diff --git a/Source/core/dom/MutationObserverRegistration.cpp b/Source/core/dom/MutationObserverRegistration.cpp
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| index 1ece4d1cbdc2a5770cb054f1787e06a791ae0faf..b265f23fc5d646df8466f48ffd34c571a623c0a7 100644
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| --- a/Source/core/dom/MutationObserverRegistration.cpp
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| +++ b/Source/core/dom/MutationObserverRegistration.cpp
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| @@ -94,7 +94,7 @@ void MutationObserverRegistration::clearTransientRegistrations()
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|      m_transientRegistrationNodes.clear();
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|  
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|      ASSERT(m_registrationNodeKeepAlive);
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| -    m_registrationNodeKeepAlive = 0; // Balanced in observeSubtreeNodeWillDetach.
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| +    m_registrationNodeKeepAlive = nullptr; // Balanced in observeSubtreeNodeWillDetach.
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|  }
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|  
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|  void MutationObserverRegistration::unregister()
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| 
 |