Remove Cairo support.

Source/WebCore/platform/graphics/FloatRect.h

 /*
  * Copyright (C) 2003, 2006, 2007 Apple 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 46 matching lines @@
 namespace Platform {
 class FloatRect;
 }
 }
 #endif
 
 #if USE(SKIA)
 struct SkRect;
 #endif
 
-#if USE(CAIRO)
-typedef struct _cairo_rectangle cairo_rectangle_t;
-#endif
-
 namespace WebCore {
 
 #if PLATFORM(OPENVG)
 class VGRect;
 #endif
 
 class LayoutRect;
 class IntRect;
 class IntPoint;
 
@@ skipping 138 matching lines @@
 
 #if USE(SKIA)
     FloatRect(const SkRect&);
     operator SkRect() const;
 #endif
 
 #if PLATFORM(OPENVG)
     operator VGRect() const;
 #endif
 
-#if USE(CAIRO)
-    FloatRect(const cairo_rectangle_t&);
-    operator cairo_rectangle_t() const;
-#endif
-
 private:
     FloatPoint m_location;
     FloatSize m_size;
 
     void setLocationAndSizeFromEdges(float left, float top, float right, float bottom)
     {
         m_location.set(left, top);
         m_size.setWidth(right - left);
         m_size.setHeight(bottom - top);
     }
@@ skipping 46 matching lines @@
 IntRect enclosedIntRect(const FloatRect&);
 
 IntRect roundedIntRect(const FloatRect&);
 
 // Map rect r from srcRect to an equivalent rect in destRect.
 FloatRect mapRect(const FloatRect& r, const FloatRect& srcRect, const FloatRect& destRect);
 
 }
 
 #endif