ASSERT -> DCHECK in core/editing.

third_party/WebKit/Source/core/editing/spellcheck/SpellCheckRequester.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 107 matching lines @@
     void enqueueRequest(SpellCheckRequest*);
     void didCheckSucceed(int sequence, const Vector<TextCheckingResult>&);
     void didCheckCancel(int sequence);
     void didCheck(int sequence, const Vector<TextCheckingResult>&);
 
     void clearProcessingRequest();
 
     Member<LocalFrame> m_frame;
     LocalFrame& frame() const
     {
-        ASSERT(m_frame);
+        DCHECK(m_frame);
         return *m_frame;
     }
 
     int m_lastRequestSequence;
     int m_lastProcessedSequence;
 
     Timer<SpellCheckRequester> m_timerToProcessQueuedRequest;
 
     Member<SpellCheckRequest> m_processingRequest;
 
     typedef HeapDeque<Member<SpellCheckRequest>> RequestQueue;
     RequestQueue m_requestQueue;
 };
 
 } // namespace blink
 
 #endif // SpellCheckRequester_h