layout: Lay out grid items with a consistent tentative block size (#37981)

When laying out a grid item, the tentative block size that is used to
determine the intrinsic inline sizes was different than the one used in
the containing block for the contents. The latter is now used for both
cases.

Testing: A test is now passing.

Signed-off-by: Oriol Brufau <obrufau@igalia.com>

components/layout/taffy/layout.rs

@@ -206,19 +206,21 @@ impl taffy::LayoutPartialTree for TaffyContainerContext<'_> {
                         ..taffy::LayoutOutput::DEFAULT
                     }
                 } else {
+                    // TODO: pass min- and max- size
+                    let tentative_block_size = content_box_known_dimensions
+                        .height
+                        .map(Au::from_f32_px)
+                        .map_or_else(SizeConstraint::default, SizeConstraint::Definite);
+
                     // Compute inline size
                     let inline_size = content_box_known_dimensions.width.unwrap_or_else(|| {
                         let constraint_space = ConstraintSpace {
-                            // TODO: pass min- and max- size
+                            block_size: tentative_block_size,
-                            block_size: SizeConstraint::new(
-                                inputs.parent_size.height.map(Au::from_f32_px),
-                                Au::zero(),
-                                None,
-                            ),
                             writing_mode,
                             preferred_aspect_ratio,
                         };
 
+                        // TODO: pass min- and max- size
                         let result = independent_context
                             .inline_content_sizes(self.layout_context, &constraint_space);
                         let adjusted_available_space = inputs
@@ -243,10 +245,7 @@ impl taffy::LayoutPartialTree for TaffyContainerContext<'_> {
                     let content_box_size_override = ContainingBlock {
                         size: ContainingBlockSize {
                             inline: Au::from_f32_px(inline_size),
-                            block: content_box_known_dimensions
+                            block: tentative_block_size,
-                                .height
-                                .map(Au::from_f32_px)
-                                .map_or_else(SizeConstraint::default, SizeConstraint::Definite),
                         },
                         style,
                     };

tests/wpt/meta/css/css-grid/grid-items/grid-item-inline-contribution-001.html.ini

@@ -1,2 +0,0 @@
-[grid-item-inline-contribution-001.html]
-  expected: FAIL