[sksg] Initial text support

Use the new node type for SkottieSlide2 labels.

TBR=

Change-Id: Icd6a4faf1c281bd83a2331c0072d1a6ed71acc09
Reviewed-on: https://skia-review.googlesource.com/102441
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
diff --git a/experimental/sksg/geometry/SkSGTrimEffect.h b/experimental/sksg/geometry/SkSGTrimEffect.h
index 860cfaf..e86ede8 100644
--- a/experimental/sksg/geometry/SkSGTrimEffect.h
+++ b/experimental/sksg/geometry/SkSGTrimEffect.h
@@ -47,6 +47,8 @@
     SkScalar                  fStart  = 0, // starting t
                               fEnd    = 1, // ending t
                               fOffset = 0; // t offset
+
+    using INHERITED = GeometryNode;
 };
 
 } // namespace sksg