Replace AllowCrossThreadAccess() + non-GCed pointers with crossThreadUnretained()

third_party/WebKit/Source/core/page/NetworkStateNotifier.cpp

 /*
  * 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
@@ skipping 118 matching lines @@
     MutexLocker locker(m_mutex);
     m_initialized = true;
 
     if (m_type == type && m_maxBandwidthMbps == maxBandwidthMbps)
         return;
     m_type = type;
     m_maxBandwidthMbps = maxBandwidthMbps;
 
     for (const auto& entry : m_observers) {
         ExecutionContext* context = entry.key;
-        context->postTask(BLINK_FROM_HERE, createCrossThreadTask(&NetworkStateNotifier::notifyObserversOfConnectionChangeOnContext, AllowCrossThreadAccess(this), type, maxBandwidthMbps));
+        context->postTask(BLINK_FROM_HERE, createCrossThreadTask(&NetworkStateNotifier::notifyObserversOfConnectionChangeOnContext, crossThreadUnretained(this), type, maxBandwidthMbps));
     }
 }
 
 void NetworkStateNotifier::notifyObserversOfConnectionChangeOnContext(WebConnectionType type, double maxBandwidthMbps, ExecutionContext* context)
 {
     ObserverList* observerList = lockAndFindObserverList(context);
 
     // The context could have been removed before the notification task got to run.
     if (!observerList)
         return;
@@ skipping 33 matching lines @@
 
     list->zeroedObservers.clear();
 
     if (list->observers.isEmpty()) {
         MutexLocker locker(m_mutex);
         m_observers.remove(context); // deletes list
     }
 }
 
 } // namespace blink