Use GraphicContext::drawImageBuffer in FEBlend

Source/platform/graphics/ImageBuffer.h

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. 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.
@@ skipping 109 matching lines @@
     bool copyRenderingResultsFromDrawingBuffer(DrawingBuffer*, bool fromFrontBuffer = false);
 
     void flush();
 
     void notifySurfaceInvalid();
     void didPresent();
 
 private:
     ImageBuffer(PassOwnPtr<ImageBufferSurface>);
 
-    void draw(GraphicsContext*, const FloatRect&, const FloatRect* = 0, CompositeOperator = CompositeSourceOver);
+    void draw(GraphicsContext*, const FloatRect&, const FloatRect* = 0, CompositeOperator = CompositeSourceOver, WebBlendMode = WebBlendModeNormal);
     void drawPattern(GraphicsContext*, const FloatRect&, const FloatSize&, const FloatPoint&, CompositeOperator, const FloatRect&, blink::WebBlendMode, const IntSize& repeatSpacing = IntSize());
     static PassRefPtr<SkColorFilter> createColorSpaceFilter(ColorSpace srcColorSpace, ColorSpace dstColorSpace);
 
     friend class GraphicsContext;
     friend class GeneratedImage;
     friend class CrossfadeGeneratedImage;
     friend class GradientGeneratedImage;
     friend class SkiaImageFilterBuilder;
 
     OwnPtr<ImageBufferSurface> m_surface;
     OwnPtr<GraphicsContext> m_context;
     ImageBufferClient* m_client;
 };
 
 struct ImageDataBuffer {
     ImageDataBuffer(const IntSize& size, PassRefPtr<Uint8ClampedArray> data) : m_size(size), m_data(data) { }
     IntSize size() const { return m_size; }
     unsigned char* data() const { return m_data->data(); }
 
     IntSize m_size;
     RefPtr<Uint8ClampedArray> m_data;
 };
 
 String PLATFORM_EXPORT ImageDataToDataURL(const ImageDataBuffer&, const String& mimeType, const double* quality);
 
 } // namespace blink
 
 #endif // ImageBuffer_h