cc: Add verify transform tree calculations to LayerTreeSettings

cc/trees/layer_tree_settings.h

Index: cc/trees/layer_tree_settings.h
diff --git a/cc/trees/layer_tree_settings.h b/cc/trees/layer_tree_settings.h
index a04ace031729e88c156ee171495e740a8d747339..6580c0763ac9c8cc11e659cb13487a23a5e89674 100644
--- a/cc/trees/layer_tree_settings.h
+++ b/cc/trees/layer_tree_settings.h
@@ -91,6 +91,7 @@ class CC_EXPORT LayerTreeSettings {
   size_t scheduled_raster_task_limit = 32;
   bool use_occlusion_for_tile_prioritization = false;
   bool verify_clip_tree_calculations = false;
+  bool verify_transform_tree_calculations = false;
   bool image_decode_tasks_enabled = false;
   bool wait_for_beginframe_interval = true;
   bool abort_commit_before_output_surface_creation = true;