Allow path renderers to self-identify

This is intended to help debug path renderer chain/selection behavior.

Change-Id: I581c4428c2f0cc586504f904255f88d0d4d5eb53
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/283220
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/ops/GrDefaultPathRenderer.h b/src/gpu/ops/GrDefaultPathRenderer.h
index 871a8c6..a42061c 100644
--- a/src/gpu/ops/GrDefaultPathRenderer.h
+++ b/src/gpu/ops/GrDefaultPathRenderer.h
@@ -20,6 +20,8 @@
 public:
     GrDefaultPathRenderer();
 
+    const char* name() const final { return "Default"; }
+
 private:
     StencilSupport onGetStencilSupport(const GrShape&) const override;