Move some core/platform/graphics/mac files to geometry

Source/platform/geometry/cg/FloatRectCG.cpp

 /*
  * Copyright (C) 2003, 2006 Apple Computer, 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 23 matching lines @@
 FloatRect::FloatRect(const CGRect& r) : m_location(r.origin), m_size(r.size)
 {
 }
 
 FloatRect::operator CGRect() const
 {
     return CGRectMake(x(), y(), width(), height());
 }
 
 }