Remove a bunch of OS(MACOSX) code

sky/engine/platform/geometry/IntSize.h

 /*
  * Copyright (C) 2003, 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 IntSize_h
 #define IntSize_h
 
 #include "platform/PlatformExport.h"
 #include "public/platform/WebCommon.h"
 
-#if OS(MACOSX)
-typedef struct CGSize CGSize;
-
-#ifdef __OBJC__
-#import <Foundation/Foundation.h>
-#endif
-#endif
-
 namespace blink {
 
 class PLATFORM_EXPORT IntSize {
 public:
     IntSize() : m_width(0), m_height(0) { }
     IntSize(int width, int height) : m_width(width), m_height(height) { }
 
     int width() const { return m_width; }
     int height() const { return m_height; }
 
@@ skipping 56 matching lines @@
     int diagonalLengthSquared() const
     {
         return m_width * m_width + m_height * m_height;
     }
 
     IntSize transposedSize() const
     {
         return IntSize(m_height, m_width);
     }
 
-#if OS(MACOSX)
-    explicit IntSize(const CGSize&); // don't do this implicitly since it's lossy
-    operator CGSize() const;
-
-#if defined(__OBJC__) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
-    explicit IntSize(const NSSize &); // don't do this implicitly since it's lossy
-    operator NSSize() const;
-#endif
-#endif
-
 private:
     int m_width, m_height;
 };
 
 inline IntSize& operator+=(IntSize& a, const IntSize& b)
 {
     a.setWidth(a.width() + b.width());
     a.setHeight(a.height() + b.height());
     return a;
 }
@@ skipping 26 matching lines @@
 }
 
 inline bool operator!=(const IntSize& a, const IntSize& b)
 {
     return a.width() != b.width() || a.height() != b.height();
 }
 
 } // namespace blink
 
 #endif // IntSize_h