Replace ENABLE(ASSERT) with DCHECK_IS_ON().

third_party/WebKit/Source/core/style/GridArea.h

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 115 matching lines @@
     m_endLine += offset;
 
     ASSERT(m_startLine >= 0);
     ASSERT(m_endLine > 0);
   }
 
  private:
   enum GridSpanType { UntranslatedDefinite, TranslatedDefinite, Indefinite };
 
   GridSpan(int startLine, int endLine, GridSpanType type) : m_type(type) {
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
     ASSERT(startLine < endLine);
     if (type == TranslatedDefinite) {
       ASSERT(startLine >= 0);
       ASSERT(endLine > 0);
     }
 #endif
 
     if (startLine >= 0)
       m_startLine = std::min(startLine, kGridMaxTracks - 1);
     else
@@ skipping 30 matching lines @@
 
   GridSpan columns;
   GridSpan rows;
 };
 
 typedef HashMap<String, GridArea> NamedGridAreaMap;
 
 }  // namespace blink
 
 #endif  // GridArea_h