Removing the dependency on GraphicsContext for drawing images in 2D canvas

Source/core/html/canvas/CanvasRenderingContext2D.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011, 2012 Apple 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 95 matching lines @@
     void setShadowBlur(float);
 
     String shadowColor() const;
     void setShadowColor(const String&);
 
     float globalAlpha() const;
     void setGlobalAlpha(float);
 
     bool isContextLost() const;
 
+    bool shouldAntialias() const;
+    void setShouldAntialias(bool);
+
     String globalCompositeOperation() const;
     void setGlobalCompositeOperation(const String&);
 
     void save();
     void restore();
 
     PassRefPtrWillBeRawPtr<SVGMatrixTearOff> currentTransform() const;
     void setCurrentTransform(PassRefPtrWillBeRawPtr<SVGMatrixTearOff>);
 
     void scale(float sx, float sy);
@@ skipping 89 matching lines @@
 
 private:
     friend class CanvasRenderingContext2DAutoRestoreSkCanvas;
 
     CanvasRenderingContext2D(HTMLCanvasElement*, const CanvasContextCreationAttributes& attrs, Document&);
 
     CanvasRenderingContext2DState& modifiableState();
     const CanvasRenderingContext2DState& state() const { return *m_stateStack.last(); }
 
     void setShadow(const FloatSize& offset, float blur, RGBA32 color);
-    void applyShadow(ShadowMode = DrawShadowAndForeground);
 
     void dispatchContextLostEvent(Timer<CanvasRenderingContext2D>*);
     void dispatchContextRestoredEvent(Timer<CanvasRenderingContext2D>*);
     void tryRestoreContextEvent(Timer<CanvasRenderingContext2D>*);
 
     bool computeDirtyRect(const FloatRect& localBounds, SkIRect*);
     bool computeDirtyRect(const FloatRect& localBounds, const SkIRect& transformedClipBounds, SkIRect*);
     void didDraw(const SkIRect&);
 
-    GraphicsContext* drawingContext() const; // Deprecated: use drawingCanvas
     SkCanvas* drawingCanvas() const;
 
     void unwindStateStack();
-    void realizeSaves(SkCanvas*);
+    void realizeSaves();
+
+    bool shouldDrawImageAntialiased(const FloatRect& destRect) const;
 
     template<typename DrawFunc, typename ContainsFunc>
     bool draw(const DrawFunc&, const ContainsFunc&, const SkRect& bounds, CanvasRenderingContext2DState::PaintType, CanvasRenderingContext2DState::ImageType = CanvasRenderingContext2DState::NoImage);
     void drawPathInternal(const Path&, CanvasRenderingContext2DState::PaintType, SkPath::FillType = SkPath::kWinding_FillType);
-    void drawImageOnContext(CanvasImageSource*, Image*, const FloatRect& srcRect, const FloatRect& dstRect, const SkPaint*);
-    void drawVideo(CanvasImageSource*, const FloatRect& srcRect, const FloatRect& dstRect);
+    void drawImageInternal(CanvasImageSource*, Image*, const FloatRect& srcRect, const FloatRect& dstRect, const SkPaint*);
     void clipInternal(const Path&, const String& windingRuleString);
 
     bool isPointInPathInternal(const Path&, const float x, const float y, const String& windingRuleString);
     bool isPointInStrokeInternal(const Path&, const float x, const float y);
 
     void scrollPathIntoViewInternal(const Path&);
 
     void drawTextInternal(const String&, float x, float y, CanvasRenderingContext2DState::PaintType, float* maxWidth = nullptr);
 
     const Font& accessFont();
@@ skipping 44 matching lines @@
     Timer<CanvasRenderingContext2D> m_dispatchContextLostEventTimer;
     Timer<CanvasRenderingContext2D> m_dispatchContextRestoredEventTimer;
     Timer<CanvasRenderingContext2D> m_tryRestoreContextEventTimer;
 };
 
 DEFINE_TYPE_CASTS(CanvasRenderingContext2D, CanvasRenderingContext, context, context->is2d(), context.is2d());
 
 } // namespace blink
 
 #endif // CanvasRenderingContext2D_h