[NOT FOR COMMIT] Fully replace SkCanvas uses.

cc/playback/clip_display_item.h

Index: cc/playback/clip_display_item.h
diff --git a/cc/playback/clip_display_item.h b/cc/playback/clip_display_item.h
index 72fa6bc7ee60e84642724d3c4ca069c24176418a..5811816db2ab190fdcc07d7fa0cfab811b4675d1 100644
--- a/cc/playback/clip_display_item.h
+++ b/cc/playback/clip_display_item.h
@@ -28,7 +28,7 @@ class CC_EXPORT ClipDisplayItem : public DisplayItem {
   ~ClipDisplayItem() override;
 
   void ToProtobuf(proto::DisplayItem* proto) const override;
-  void Raster(SkCanvas* canvas,
+  void Raster(CdlCanvas* canvas,
               SkPicture::AbortCallback* callback) const override;
   void AsValueInto(const gfx::Rect& visual_rect,
                    base::trace_event::TracedValue* array) const override;
@@ -53,7 +53,7 @@ class CC_EXPORT EndClipDisplayItem : public DisplayItem {
   ~EndClipDisplayItem() override;
 
   void ToProtobuf(proto::DisplayItem* proto) const override;
-  void Raster(SkCanvas* canvas,
+  void Raster(CdlCanvas* canvas,
               SkPicture::AbortCallback* callback) const override;
   void AsValueInto(const gfx::Rect& visual_rect,
                    base::trace_event::TracedValue* array) const override;