Remove image decoder down sampling

Source/core/platform/graphics/ImageSource.h

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
- * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
@@ skipping 115 matching lines @@
 
     float frameDurationAtIndex(size_t) const;
     bool frameHasAlphaAtIndex(size_t) const; // Whether or not the frame actually used any alpha.
     bool frameIsCompleteAtIndex(size_t) const; // Whether or not the frame is fully received.
     ImageOrientation orientationAtIndex(size_t) const; // EXIF image orientation
 
     // Return the number of bytes in the decoded frame. If the frame is not yet
     // decoded then return 0.
     unsigned frameBytesAtIndex(size_t) const;
 
-#if ENABLE(IMAGE_DECODER_DOWN_SAMPLING)
-    static unsigned maxPixelsPerDecodedImage() { return s_maxPixelsPerDecodedImage; }
-    static void setMaxPixelsPerDecodedImage(unsigned maxPixels) { s_maxPixelsPerDecodedImage = maxPixels; }
-#endif
-
     void reportMemoryUsage(MemoryObjectInfo*) const;
 
 private:
     OwnPtr<NativeImageDecoderPtr> m_decoder;
 
     AlphaOption m_alphaOption;
     GammaAndColorProfileOption m_gammaAndColorProfileOption;
-#if ENABLE(IMAGE_DECODER_DOWN_SAMPLING)
-    static unsigned s_maxPixelsPerDecodedImage;
-#endif
 };
 
 }
 
 #endif