Remove wtf_ceil.

Source/platform/LayoutUnit.h

 /*
  * Copyright (c) 2012, 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 113 matching lines @@
         REPORT_OVERFLOW(value > std::numeric_limits<int>::min() && value < std::numeric_limits<int>::max());
         m_value = static_cast<int>(value);
     }
 
     LayoutUnit abs() const
     {
         LayoutUnit returnValue;
         returnValue.setRawValue(::abs(m_value));
         return returnValue;
     }
-#if OS(MACOSX)
-    int wtf_ceil() const
-#else
     int ceil() const
-#endif
     {
         if (UNLIKELY(m_value >= INT_MAX - kFixedPointDenominator + 1))
             return intMaxForLayoutUnit;
 
         if (m_value >= 0)
             return (m_value + kFixedPointDenominator - 1) / kFixedPointDenominator;
         return toInt();
     }
     ALWAYS_INLINE int round() const
     {
@@ skipping 644 matching lines @@
     if (value >= max)
         return max;
     if (value <= min)
         return min;
     return value;
 }
 
 } // namespace blink
 
 #endif // LayoutUnit_h