[WIP]Oilpan: checking for nearly-dead observers.

Source/platform/LifecycleObserver.h

Index: Source/platform/LifecycleObserver.h
diff --git a/Source/platform/LifecycleObserver.h b/Source/platform/LifecycleObserver.h
index f1d6f788fce07a135cc5580d9878a3c79b5729a4..0174d2ca4802dc30b6b93d5a9dbadf63223202a2 100644
--- a/Source/platform/LifecycleObserver.h
+++ b/Source/platform/LifecycleObserver.h
@@ -75,12 +75,12 @@ template<typename T, typename Observer, typename Notifier>
 inline void LifecycleObserver<T, Observer, Notifier>::setContext(typename LifecycleObserver<T, Observer, Notifier>::Context* context)
 {
     if (m_lifecycleContext)
-        static_cast<Notifier*>(m_lifecycleContext.get())->removeObserver(static_cast<Observer*>(this));
+        static_cast<Notifier*>(m_lifecycleContext.get())->removeObserver(static_cast<Observer*>(this), IsGarbageCollectedType<T>::value);
 
     m_lifecycleContext = context;
 
     if (m_lifecycleContext)
-        static_cast<Notifier*>(m_lifecycleContext.get())->addObserver(static_cast<Observer*>(this));
+        static_cast<Notifier*>(m_lifecycleContext.get())->addObserver(static_cast<Observer*>(this), IsGarbageCollectedType<T>::value);
 }
 
 } // namespace blink