Refine stroke sample execution boundary

src/legacy_canvas_stroke_execution_services.h

@@ -1031,6 +1031,36 @@ template <typename ExecuteSample, typename BeginFace, typename PrepareDirtyReque
         });
 }
 
+template <std::size_t BindingCount>
+[[nodiscard]] inline LegacyStrokeSampleExecutionResult execute_legacy_canvas_stroke_face_sample_polygon(
+    const LegacyStrokeFaceSamplePolygonExecutionRequest& request,
+    const std::array<LegacyCanvasStrokeTextureBinding, BindingCount>& destination_texture_bindings,
+    const LegacyCanvasStrokeTextureInputDispatch& destination_texture_dispatch)
+{
+    return execute_legacy_canvas_stroke_face_sample_polygon(
+        LegacyStrokeFaceSamplePolygonExecutionRequest {
+            .context = request.context,
+            .target_size = request.target_size,
+            .polygon_vertices = request.polygon_vertices,
+            .face_index = request.face_index,
+            .copy_stroke_destination = request.copy_stroke_destination,
+            .bind_destination_texture = [&](int) {
+                bind_legacy_canvas_stroke_texture_inputs(
+                    destination_texture_bindings,
+                    destination_texture_dispatch);
+            },
+            .copy_framebuffer_to_destination_texture =
+                request.copy_framebuffer_to_destination_texture,
+            .unbind_destination_texture = [&](int) {
+                unbind_legacy_canvas_stroke_texture_inputs(
+                    destination_texture_bindings,
+                    destination_texture_dispatch);
+            },
+            .upload_brush_vertices = request.upload_brush_vertices,
+            .draw_brush_shape = request.draw_brush_shape,
+        });
+}
+
 [[nodiscard]] inline LegacyCanvasStrokeMixPassResult execute_legacy_canvas_stroke_mix_pass(
     const LegacyCanvasStrokeMixPassRequest& request)
 {