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 cae112e57e9951ea7f468c5c79f9a02e24e85f2c..b163198a9e8682feeb69e1a8ce313a74a155e2a7 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 {
@@ -177,6 +178,10 @@ 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(const PaintRecord* record) = 0;
   virtual void drawPicture(const PaintRecord* record,
                            const SkMatrix* matrix,