Replace ASSERT*() with DCHECK*() in core/events/.

third_party/WebKit/Source/core/events/NodeEventContext.h

 /*
  * Copyright (C) 2014 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 30 matching lines @@
 class CORE_EXPORT NodeEventContext {
     DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
 public:
     // FIXME: Use ContainerNode instead of Node.
     NodeEventContext(Node*, EventTarget* currentTarget);
     DECLARE_TRACE();
 
     Node* node() const { return m_node.get(); }
 
     void setTreeScopeEventContext(TreeScopeEventContext* treeScopeEventContext) { m_treeScopeEventContext = treeScopeEventContext; }
-    TreeScopeEventContext& treeScopeEventContext() { ASSERT(m_treeScopeEventContext); return *m_treeScopeEventContext; }
+    TreeScopeEventContext& treeScopeEventContext() { DCHECK(m_treeScopeEventContext); return *m_treeScopeEventContext; }
 
     EventTarget* target() const { return m_treeScopeEventContext->target(); }
     EventTarget* relatedTarget() const { return m_treeScopeEventContext->relatedTarget(); }
     TouchEventContext* touchEventContext() const { return m_treeScopeEventContext->touchEventContext(); }
 
     bool currentTargetSameAsTarget() const { return m_currentTarget.get() == target(); }
     void handleLocalEvents(Event&) const;
 
 private:
     Member<Node> m_node;
     Member<EventTarget> m_currentTarget;
     Member<TreeScopeEventContext> m_treeScopeEventContext;
 };
 
 } // namespace blink
 
 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::NodeEventContext);
 
 #endif // NodeEventContext_h