WIP (Introduce WTF::NonNullPtr<T>.)

Source/core/dom/EventContext.h

 /*
  * Copyright (C) 2010 Google 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 94 matching lines @@
 inline TouchEventContext* toTouchEventContext(EventContext* eventContext)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!eventContext || eventContext->isTouchEventContext());
     return static_cast<TouchEventContext*>(eventContext);
 }
 
 #ifndef NDEBUG
 inline bool EventContext::isUnreachableNode(EventTarget* target)
 {
     // FIXME: Checks also for SVG elements.
-    return target && target->toNode() && !target->toNode()->isSVGElement() && !target->toNode()->treeScope().isInclusiveAncestorOf(m_node->treeScope());
+    return target && target->toNode() && !target->toNode()->isSVGElement() && !target->toNode()->treeScope()->isInclusiveAncestorOf(m_node->treeScope());
 }
 #endif
 
 inline void MouseOrFocusEventContext::setRelatedTarget(PassRefPtr<EventTarget> relatedTarget)
 {
     ASSERT(!isUnreachableNode(relatedTarget.get()));
     m_relatedTarget = relatedTarget;
 }
 
 }
 
 #endif // EventContext_h