Make CanvasRenderingContext2D use SkCanvas directly

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 21 matching lines @@
 #include "core/html/canvas/Canvas2DContextAttributes.h"
 #include "core/html/canvas/CanvasContextCreationAttributes.h"
 #include "core/html/canvas/CanvasPathMethods.h"
 #include "core/html/canvas/CanvasRenderingContext.h"
 #include "core/html/canvas/ClipList.h"
 #include "core/html/canvas/HitRegion.h"
 #include "core/svg/SVGMatrixTearOff.h"
 #include "platform/fonts/Font.h"
 #include "platform/graphics/Color.h"
 #include "platform/geometry/FloatSize.h"
-#include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsTypes.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/Path.h"
 #include "platform/transforms/AffineTransform.h"
 #include "wtf/HashMap.h"
 #include "wtf/ListHashSet.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink { class WebLayer; }
@@ skipping 190 matching lines @@
         virtual void fontsNeedUpdate(CSSFontSelector*) override;
 
         virtual void trace(Visitor*) override;
 
         unsigned m_unrealizedSaveCount;
 
         String m_unparsedStrokeColor;
         String m_unparsedFillColor;
         RefPtrWillBeMember<CanvasStyle> m_strokeStyle;
         RefPtrWillBeMember<CanvasStyle> m_fillStyle;
+
         float m_lineWidth;
         LineCap m_lineCap;
         LineJoin m_lineJoin;
         float m_miterLimit;
         FloatSize m_shadowOffset;
         float m_shadowBlur;
         RGBA32 m_shadowColor;
         float m_globalAlpha;
         SkXfermode::Mode m_globalComposite;
         AffineTransform m_transform;
@@ skipping 27 matching lines @@
     bool shouldDrawShadows() const;
 
     void dispatchContextLostEvent(Timer<CanvasRenderingContext2D>*);
     void dispatchContextRestoredEvent(Timer<CanvasRenderingContext2D>*);
     void tryRestoreContextEvent(Timer<CanvasRenderingContext2D>*);
 
     bool computeDirtyRect(const FloatRect& localBounds, FloatRect*);
     bool computeDirtyRect(const FloatRect& localBounds, const FloatRect& transformedClipBounds, FloatRect*);
     void didDraw(const FloatRect&);
 
-    GraphicsContext* drawingContext() const;
+    GraphicsContext* drawingContext() const; // Deprecated: use drawingCanvas
+    SkCanvas* drawingCanvas() const;
 
     void unwindStateStack();
-    void realizeSaves(GraphicsContext*);
+    void realizeSaves(SkCanvas*);
 
     void applyStrokePattern();
     void applyFillPattern();
 
     void drawImageInternal(CanvasImageSource*, float sx, float sy, float sw, float sh, float dx, float dy, float dw, float dh, ExceptionState&);
 
     void fillInternal(const Path&, const String& windingRuleString);
     void strokeInternal(const Path&);
     void clipInternal(const Path&, const String& windingRuleString);
 
@@ skipping 45 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