Simplify parameters passed to path renderers

src/gpu/GrStencilAndCoverPathRenderer.h

Index: src/gpu/GrStencilAndCoverPathRenderer.h
diff --git a/src/gpu/GrStencilAndCoverPathRenderer.h b/src/gpu/GrStencilAndCoverPathRenderer.h
index 5b6ce41dd8b4e11989cf397b7cf6f8f0c227e69a..bb8cdb0dd7724602ad608d17c5f8f113d5315b90 100644
--- a/src/gpu/GrStencilAndCoverPathRenderer.h
+++ b/src/gpu/GrStencilAndCoverPathRenderer.h
@@ -25,10 +25,9 @@ public:
 
 
 private:
-    StencilSupport onGetStencilSupport(const GrDrawTarget*,
-                                       const GrPipelineBuilder*,
-                                       const SkPath&,
-                                       const GrStrokeInfo&) const override;
+    StencilSupport onGetStencilSupport(const SkPath&, const GrStrokeInfo&) const override {
+        return GrPathRenderer::kStencilOnly_StencilSupport;
+    }
 
     bool onCanDrawPath(const CanDrawPathArgs&) const override;