Remove an incorrect comment from ImageSource

Source/platform/graphics/ImageSource.h

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 24 matching lines @@
 class SkBitmap;
 
 namespace blink {
 
 class DeferredImageDecoder;
 class ImageOrientation;
 class IntPoint;
 class IntSize;
 class SharedBuffer;
 
-// This is a helper class used by BitmapImage only. If you need an image
-// decoder then you should look into
-// Source/platform/image-decoders/ImageDecoder.h.
 class PLATFORM_EXPORT ImageSource {
     WTF_MAKE_NONCOPYABLE(ImageSource);
 public:
     enum AlphaOption {
         AlphaPremultiplied,
         AlphaNotPremultiplied
     };
 
     enum GammaAndColorProfileOption {
         GammaAndColorProfileApplied,
@@ skipping 53 matching lines @@
 private:
     OwnPtr<DeferredImageDecoder> m_decoder;
 
     AlphaOption m_alphaOption;
     GammaAndColorProfileOption m_gammaAndColorProfileOption;
 };
 
 } // namespace blink
 
 #endif