Rename OS(DARWIN) to OS(MACOSX).

Source/core/platform/graphics/IntPoint.h

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * 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:
  * 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 12 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef IntPoint_h
 #define IntPoint_h
 
 #include "core/platform/graphics/IntSize.h"
 #include "wtf/MathExtras.h"
 
-#if OS(DARWIN)
+#if OS(MACOSX)
 typedef struct CGPoint CGPoint;
 #ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
 typedef struct CGPoint NSPoint;
 #else
 typedef struct _NSPoint NSPoint;
 #endif
 #endif
 
 namespace WebCore {
 
@@ skipping 37 matching lines @@
     void clampNegativeToZero()
     {
         *this = expandedTo(zero());
     }
 
     IntPoint transposedPoint() const
     {
         return IntPoint(m_y, m_x);
     }
 
-#if OS(DARWIN)
+#if OS(MACOSX)
     explicit IntPoint(const CGPoint&); // don't do this implicitly since it's lossy
     operator CGPoint() const;
 
 #if !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
     explicit IntPoint(const NSPoint&); // don't do this implicitly since it's lossy
     operator NSPoint() const;
 #endif
 #endif
 
 private:
@@ skipping 53 matching lines @@
 }
 
 inline int IntPoint::distanceSquaredToPoint(const IntPoint& point) const
 {
     return ((*this) - point).diagonalLengthSquared();
 }
 
 } // namespace WebCore
 
 #endif // IntPoint_h