Replace ENABLE(ASSERT) with DCHECK_IS_ON().

third_party/WebKit/Source/core/layout/compositing/GraphicsLayerUpdater.h

 /*
  * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
  * 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
@@ skipping 32 matching lines @@
 
   enum UpdateType {
     DoNotForceUpdate,
     ForceUpdate,
   };
 
   void update(PaintLayer&, Vector<PaintLayer*>& layersNeedingPaintInvalidation);
 
   bool needsRebuildTree() const { return m_needsRebuildTree; }
 
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   static void assertNeedsToUpdateGraphicsLayerBitsCleared(PaintLayer&);
 #endif
 
  private:
   class UpdateContext;
 
   void updateRecursive(PaintLayer&,
                        UpdateType,
                        const UpdateContext&,
                        Vector<PaintLayer*>& layersNeedingPaintInvalidation);
 
   bool m_needsRebuildTree;
 };
 
 }  // namespace blink
 
 #endif  // GraphicsLayerUpdater_h