Add PaintCanvas::drawDisplayItemList

cc/paint/paint_canvas.h

Index: cc/paint/paint_canvas.h
diff --git a/cc/paint/paint_canvas.h b/cc/paint/paint_canvas.h
index 35c7173e43d2e913415fcc73cb051ad8d936b1b7..6be10b0495d8d3552cdc558ad100c04f1c9b8f8e 100644
--- a/cc/paint/paint_canvas.h
+++ b/cc/paint/paint_canvas.h
@@ -14,6 +14,7 @@
 
 namespace cc {
 
+class DisplayItemList;
 class PaintFlags;
 
 class CC_PAINT_EXPORT PaintCanvas {
@@ -164,6 +165,10 @@ class CC_PAINT_EXPORT PaintCanvas {
                             SkScalar y,
                             const PaintFlags& flags) = 0;
 
+  virtual void drawDisplayItemList(
+      const SkRect& bounds,
+      const DisplayItemList* display_item_list) = 0;
+
   virtual void drawPicture(sk_sp<const PaintRecord> record,
                            const SkMatrix* matrix,
                            const PaintFlags* flags) = 0;