Oilpan: Move LifecycleNotifier's hierarchy to Oilpan's heap

Source/core/dom/ActiveDOMObject.cpp

Index: Source/core/dom/ActiveDOMObject.cpp
diff --git a/Source/core/dom/ActiveDOMObject.cpp b/Source/core/dom/ActiveDOMObject.cpp
index 2d6157f388e6cda2c835ae6e9d7c790ed373d0de..1dd19457451f77f67bc44230ac0de56ff6b3e3c6 100644
--- a/Source/core/dom/ActiveDOMObject.cpp
+++ b/Source/core/dom/ActiveDOMObject.cpp
@@ -42,6 +42,7 @@ ActiveDOMObject::ActiveDOMObject(ExecutionContext* executionContext)
 
 ActiveDOMObject::~ActiveDOMObject()
 {
+#if !ENABLE(OILPAN)
     // ActiveDOMObject may be inherited by a sub-class whose life-cycle
     // exceeds that of the associated ExecutionContext. In those cases,
     // m_executionContext would/should have been nullified by
@@ -53,6 +54,7 @@ ActiveDOMObject::~ActiveDOMObject()
 
     ASSERT(m_suspendIfNeededCalled);
     ASSERT(executionContext()->isContextThread());
+#endif
 }
 
 void ActiveDOMObject::suspendIfNeeded()