[NOT FOR COMMIT] Fully replace SkCanvas uses.

third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.h

 /*
  * Copyright (C) 2009 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 13 matching lines @@
  */
 
 #ifndef CanvasRenderingContext_h
 #define CanvasRenderingContext_h
 
 #include "core/CoreExport.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/canvas/CanvasContextCreationAttributes.h"
 #include "core/layout/HitTestCanvasResult.h"
 #include "core/offscreencanvas/OffscreenCanvas.h"
+#include "skia/ext/cdl_common.h"
 #include "third_party/skia/include/core/SkColorSpace.h"
 #include "third_party/skia/include/core/SkImageInfo.h"
 #include "wtf/HashSet.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/text/StringHash.h"
 
-class SkCanvas;
-
 namespace blink {
 
 class CanvasImageSource;
 class HTMLCanvasElement;
 class ImageData;
 class ImageBitmap;
 class WebLayer;
 
 enum CanvasColorSpace {
   kLegacyCanvasColorSpace,
@@ skipping 68 matching lines @@
     // Lost context provoked by WEBGL_lose_context.
     WebGLLoseContextLostContext,
 
     // Lost context occurred due to internal implementation reasons.
     SyntheticLostContext,
   };
   virtual void loseContext(LostContextMode) {}
 
   // Canvas2D-specific interface
   virtual bool is2d() const { return false; }
-  virtual void restoreCanvasMatrixClipStack(SkCanvas*) const {}
+  virtual void restoreCanvasMatrixClipStack(CdlCanvas*) const {}
   virtual void reset() {}
   virtual void clearRect(double x, double y, double width, double height) {}
   virtual void didSetSurfaceSize() {}
   virtual void setShouldAntialias(bool) {}
   virtual unsigned hitRegionsCount() const { return 0; }
   virtual void setFont(const String&) {}
   virtual void styleDidChange(const ComputedStyle* oldStyle,
                               const ComputedStyle& newStyle) {}
   virtual HitTestCanvasResult* getControlAndIdIfHitRegionExists(
       const LayoutPoint& location) {
@@ skipping 49 matching lines @@
   Member<OffscreenCanvas> m_offscreenCanvas;
   HashSet<String> m_cleanURLs;
   HashSet<String> m_dirtyURLs;
   CanvasColorSpace m_colorSpace;
   CanvasContextCreationAttributes m_creationAttributes;
 };
 
 }  // namespace blink
 
 #endif