Remove final usage of asSkCanvas

Bug: 137581257
Test: builds
Change-Id: Ib38f85c11be332e6cd784f8bbf55f58cde72ac09
diff --git a/libs/hwui/SkiaCanvas.cpp b/libs/hwui/SkiaCanvas.cpp
index 6ea6af8..f01b1bf 100644
--- a/libs/hwui/SkiaCanvas.cpp
+++ b/libs/hwui/SkiaCanvas.cpp
@@ -778,6 +778,13 @@
     mCanvas->drawDrawable(drawable.get());
 }
 
+void SkiaCanvas::drawPicture(const SkPicture& picture) {
+    // TODO: Change to mCanvas->drawPicture()? SkCanvas::drawPicture seems to be
+    // where the logic is for playback vs. ref picture. Using picture.playback here
+    // to stay behavior-identical for now, but should revisit this at some point.
+    picture.playback(mCanvas);
+}
+
 // ----------------------------------------------------------------------------
 // Canvas draw operations: View System
 // ----------------------------------------------------------------------------