[librsvg: 70/90] Initialize the DrawingCtx's bbox with the initial affine, for good measure

[Federico Mena Quintero <federico src gnome org>]

commit be7a9ea0b0e36eec72e467b344ebacb86caa60f0
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Mar 21 17:56:26 2019 -0600

    Initialize the DrawingCtx's bbox with the initial affine, for good measure

 rsvg_internals/src/drawing_ctx.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/rsvg_internals/src/drawing_ctx.rs b/rsvg_internals/src/drawing_ctx.rs
index e59b9210..e5a99cc2 100644
--- a/rsvg_internals/src/drawing_ctx.rs
+++ b/rsvg_internals/src/drawing_ctx.rs
@@ -172,7 +172,7 @@ impl DrawingCtx {
             cr_stack: Vec::new(),
             cr: cr.clone(),
             view_box_stack: Rc::new(RefCell::new(view_box_stack)),
-            bbox: BoundingBox::new(&cairo::Matrix::identity()),
+            bbox: BoundingBox::new(&initial_affine),
             drawsub_stack: Vec::new(),
             acquired_nodes: Rc::new(RefCell::new(Vec::new())),
             measuring,