[NOT FOR COMMIT] Fully replace SkCanvas uses.

third_party/WebKit/Source/platform/graphics/PlaceholderImage.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PlaceholderImage_h
 #define PlaceholderImage_h
 
 #include "platform/SharedBuffer.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/Image.h"
 #include "platform/graphics/ImageOrientation.h"
+#include "skia/ext/cdl_common.h"
 #include "third_party/skia/include/core/SkImage.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 #include "wtf/PassRefPtr.h"
 
-class SkCanvas;
-class SkPaint;
-
 namespace blink {
 
 class FloatRect;
 class ImageObserver;
 
 // A generated placeholder image that shows a translucent gray rectangle.
 class PLATFORM_EXPORT PlaceholderImage final : public Image {
  public:
   static PassRefPtr<PlaceholderImage> create(ImageObserver* observer,
                                              const IntSize& size) {
     return adoptRef(new PlaceholderImage(observer, size));
   }
 
   ~PlaceholderImage() override;
 
   IntSize size() const override { return m_size; }
 
   sk_sp<SkImage> imageForCurrentFrame() override;
 
-  void draw(SkCanvas*,
-            const SkPaint&,
+  void draw(CdlCanvas*,
+            const CdlPaint&,
             const FloatRect& destRect,
             const FloatRect& srcRect,
             RespectImageOrientationEnum,
             ImageClampingMode) override;
 
   void destroyDecodedData() override;
 
  private:
   PlaceholderImage(ImageObserver* observer, const IntSize& size)
       : Image(observer), m_size(size) {}
 
   bool currentFrameHasSingleSecurityOrigin() const override { return true; }
 
   bool currentFrameKnownToBeOpaque(MetadataMode = UseCurrentMetadata) override {
     // Placeholder images are translucent.
     return false;
   }
 
   IntSize m_size;
   // Lazily initialized.
   sk_sp<SkImage> m_imageForCurrentFrame;
 };
 
 }  // namespace blink
 
 #endif