[NOT FOR COMMIT] Fully replace SkCanvas uses.

third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp

Index: third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp
diff --git a/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp b/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp
index f5dc56f1ab7224d176d08aa43a23f8c1d9330bfc..96e45b2653a235bca0a183479cfc27dfbea272fa 100644
--- a/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp
+++ b/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp
@@ -13,6 +13,7 @@
 #include "platform/graphics/StaticBitmapImage.h"
 #include "platform/graphics/UnacceleratedImageBufferSurface.h"
 #include "platform/graphics/gpu/AcceleratedImageBufferSurface.h"
+#include "skia/ext/cdl_canvas.h"
 #include "wtf/Assertions.h"
 #include "wtf/CurrentTime.h"
 
@@ -198,14 +199,14 @@ bool OffscreenCanvasRenderingContext2D::parseColorOrCurrentColor(
   return ::blink::parseColorOrCurrentColor(color, colorString, nullptr);
 }
 
-SkCanvas* OffscreenCanvasRenderingContext2D::drawingCanvas() const {
+CdlCanvas* OffscreenCanvasRenderingContext2D::drawingCanvas() const {
   ImageBuffer* buffer = imageBuffer();
   if (!buffer)
     return nullptr;
   return imageBuffer()->canvas();
 }
 
-SkCanvas* OffscreenCanvasRenderingContext2D::existingDrawingCanvas() const {
+CdlCanvas* OffscreenCanvasRenderingContext2D::existingDrawingCanvas() const {
   if (!m_imageBuffer)
     return nullptr;
   return m_imageBuffer->canvas();
@@ -238,7 +239,7 @@ sk_sp<SkImageFilter> OffscreenCanvasRenderingContext2D::stateGetFilter() {
 
 void OffscreenCanvasRenderingContext2D::validateStateStack() const {
 #if DCHECK_IS_ON()
-  if (SkCanvas* skCanvas = existingDrawingCanvas()) {
+  if (CdlCanvas* skCanvas = existingDrawingCanvas()) {
     DCHECK_EQ(static_cast<size_t>(skCanvas->getSaveCount()),
               m_stateStack.size() + 1);
   }