Remove unused GC::writePixels() wrapper.

Source/platform/graphics/GraphicsContext.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  * Copyright (C) 2013 Google 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.
@@ skipping 267 matching lines @@
         const FloatSize& tileScaleFactor, Image::TileRule hRule = Image::StretchTile, Image::TileRule vRule = Image::StretchTile,
         CompositeOperator = CompositeSourceOver);
 
     void drawImageBuffer(ImageBuffer*, const FloatRect& destRect, const FloatRect* srcRect = 0, CompositeOperator = CompositeSourceOver, WebBlendMode = WebBlendModeNormal);
 
     void drawPicture(PassRefPtr<SkPicture>, const FloatRect& dest, const FloatRect& src, CompositeOperator, WebBlendMode);
 
     // These methods write to the canvas and modify the opaque region, if tracked.
     // Also drawLine(const IntPoint& point1, const IntPoint& point2) and fillRoundedRect
     void writePixels(const SkImageInfo&, const void* pixels, size_t rowBytes, int x, int y);
-    void writePixels(const SkBitmap&, int x, int y);
     void drawBitmap(const SkBitmap&, SkScalar, SkScalar, const SkPaint* = 0);
     void drawBitmapRect(const SkBitmap&, const SkRect*, const SkRect&, const SkPaint* = 0);
     void drawOval(const SkRect&, const SkPaint&);
     void drawPath(const SkPath&, const SkPaint&);
     // After drawing directly to the context's canvas, use this function to notify the context so
     // it can track the opaque region.
     // FIXME: this is still needed only because ImageSkia::paintSkBitmap() may need to notify for a
     //        smaller rect than the one drawn to, due to its clipping logic.
     void didDrawRect(const SkRect&, const SkPaint&, const SkBitmap* = 0);
     void drawRect(const SkRect&, const SkPaint&);
@@ skipping 214 matching lines @@
     bool m_accelerated : 1;
     bool m_isCertainlyOpaque : 1;
     bool m_printing : 1;
     bool m_antialiasHairlineImages : 1;
     bool m_shouldSmoothFonts : 1;
 };
 
 } // namespace blink
 
 #endif // GraphicsContext_h