Remove windows/mac/ios specific code from //ui

ui/gfx/geometry/size.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_GFX_GEOMETRY_SIZE_H_
 #define UI_GFX_GEOMETRY_SIZE_H_
 
 #include <iosfwd>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "ui/gfx/geometry/size_f.h"
 #include "ui/gfx/gfx_export.h"
 
-#if defined(OS_WIN)
-typedef struct tagSIZE SIZE;
-#elif defined(OS_IOS)
-#include <CoreGraphics/CoreGraphics.h>
-#elif defined(OS_MACOSX)
-#include <ApplicationServices/ApplicationServices.h>
-#endif
-
 namespace gfx {
 
 // A size has width and height values.
 class GFX_EXPORT Size {
  public:
   Size() : width_(0), height_(0) {}
   Size(int width, int height)
       : width_(width < 0 ? 0 : width), height_(height < 0 ? 0 : height) {}
-#if defined(OS_MACOSX)
-  explicit Size(const CGSize& s)
-      : width_(s.width < 0 ? 0 : s.width),
-        height_(s.height < 0 ? 0 : s.height) {}
-#endif
-
   ~Size() {}
 
-#if defined(OS_MACOSX)
-  Size& operator=(const CGSize& s);
-#endif
-
-#if defined(OS_WIN)
-  SIZE ToSIZE() const;
-#elif defined(OS_MACOSX)
-  CGSize ToCGSize() const { return CGSizeMake(width(), height()); }
-#endif
-
   int width() const { return width_; }
   int height() const { return height_; }
 
   void set_width(int width) { width_ = width < 0 ? 0 : width; }
   void set_height(int height) { height_ = height < 0 ? 0 : height; }
 
   int GetArea() const;
 
   void SetSize(int width, int height) {
     set_width(width);
@@ skipping 27 matching lines @@
 }
 
 // This is declared here for use in gtest-based unit tests but is defined in
 // the gfx_test_support target. Depend on that to use this in your unit test.
 // This should not be used in production code - call ToString() instead.
 void PrintTo(const Size& size, ::std::ostream* os);
 
 }  // namespace gfx
 
 #endif  // UI_GFX_GEOMETRY_SIZE_H_