Replace ENABLE(ASSERT) with DCHECK_IS_ON().

third_party/WebKit/Source/platform/geometry/FloatRect.h

 /*
  * Copyright (C) 2003, 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2005 Nokia.  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 183 matching lines @@
   FloatRect(const NSRect&);
   operator NSRect() const;
 #endif
 #endif
 
   operator SkRect() const {
     return SkRect::MakeXYWH(x(), y(), width(), height());
   }
   operator gfx::RectF() const;
 
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   bool mayNotHaveExactIntRectRepresentation() const;
 #endif
 
   String toString() const;
 
  private:
   FloatPoint m_location;
   FloatSize m_size;
 
   void setLocationAndSizeFromEdges(float left,
@@ skipping 58 matching lines @@
                                   const FloatRect& srcRect,
                                   const FloatRect& destRect);
 
 // Redeclared here to avoid ODR issues.
 // See platform/testing/GeometryPrinters.h.
 void PrintTo(const FloatRect&, std::ostream*);
 
 }  // namespace blink
 
 #endif