Remove Cairo support.

Source/WebCore/platform/graphics/Pattern.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2007-2008 Torch Mobile, Inc.
  *
  * 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.
@@ skipping 20 matching lines @@
 #include "AffineTransform.h"
 #include "Image.h"
 
 #include <wtf/PassRefPtr.h>
 #include <wtf/RefCounted.h>
 #include <wtf/RefPtr.h>
 
 #if USE(CG)
 typedef struct CGPattern* CGPatternRef;
 typedef CGPatternRef PlatformPatternPtr;
-#elif USE(CAIRO)
-#include <cairo.h>
-typedef cairo_pattern_t* PlatformPatternPtr;
 #elif USE(SKIA)
 class SkShader;
 typedef SkShader* PlatformPatternPtr;
 #elif PLATFORM(QT)
 #include <QBrush>
 typedef QBrush PlatformPatternPtr;
 #elif PLATFORM(WX)
 #if USE(WXGC)
 class wxGraphicsBrush;
 typedef wxGraphicsBrush* PlatformPatternPtr;
@@ skipping 46 matching lines @@
     AffineTransform m_patternSpaceTransformation;
     PlatformPatternPtr m_pattern;
 #if USE(SKIA)
     int m_externalMemoryAllocated;
 #endif
 };
 
 } //namespace
 
 #endif