[NOT FOR REVIEW]

cc/trees/draw_property_utils.cc

Index: cc/trees/draw_property_utils.cc
diff --git a/cc/trees/draw_property_utils.cc b/cc/trees/draw_property_utils.cc
index 98286510f889abfb19387ec41a07af4f20505ce1..a3722d3ac117661d71fd659280ca70c5feaf9c9b 100644
--- a/cc/trees/draw_property_utils.cc
+++ b/cc/trees/draw_property_utils.cc
@@ -1044,6 +1044,16 @@ void BuildPropertyTreesAndComputeVisibleRects(
     bool can_render_to_separate_surface,
     PropertyTrees* property_trees,
     LayerImplList* visible_layer_list) {
+  if (root_layer->layer_tree_impl()->settings().verify_clip_tree_calculations) {
+    bool build_new_clip_tree = true;
+    PropertyTrees* test_property_trees_with_new_clip_tree =
+      root_layer->layer_tree_impl()->test_property_trees_with_new_clip_tree();
+    PropertyTreeBuilder::BuildPropertyTrees(
+        root_layer, page_scale_layer, inner_viewport_scroll_layer,
+        outer_viewport_scroll_layer, overscroll_elasticity_layer,
+        elastic_overscroll, page_scale_factor, device_scale_factor, viewport,
+        device_transform, test_property_trees_with_new_clip_tree, build_new_clip_tree);
+  }
   PropertyTreeBuilder::BuildPropertyTrees(
       root_layer, page_scale_layer, inner_viewport_scroll_layer,
       outer_viewport_scroll_layer, overscroll_elasticity_layer,