layout: Fix intrinsic contributions of tables (#34696)

If a table element had e.g. `width: 0px`, we were assuming that this was
its intrinsic min-content and max-content contributions.

However, tables are always at least as big as its min-content size, so
this patch floors the intrinsic contributions by that amount.

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

3 files changed, 24 insertions, 4 deletions

diff --git a/components/layout_2020/flow/mod.rs b/components/layout_2020/flow/mod.rs
index e94301391e2..745f7b57e73 100644
--- a/components/layout_2020/flow/mod.rs
+++ b/components/layout_2020/flow/mod.rs
@@ -411,6 +411,7 @@ fn compute_inline_content_sizes_for_block_level_boxes(
                     containing_block,
                     &LogicalVec2::zero(),
                     false,    /* auto_block_size_stretches_to_containing_block */
+                    false,    /* is_table */
                     |_| None, /* TODO: support preferred aspect ratios on non-replaced boxes */
                     |constraint_space| {
                         base.inline_content_sizes(layout_context, constraint_space, contents)
diff --git a/components/layout_2020/formatting_contexts.rs b/components/layout_2020/formatting_contexts.rs
index 0fb34b422cd..886328fb304 100644
--- a/components/layout_2020/formatting_contexts.rs
+++ b/components/layout_2020/formatting_contexts.rs
@@ -204,11 +204,18 @@ impl IndependentFormattingContext {
         auto_minimum: &LogicalVec2<Au>,
         auto_block_size_stretches_to_containing_block: bool,
     ) -> InlineContentSizesResult {
+        let is_table = matches!(
+            self.contents,
+            IndependentFormattingContextContents::NonReplaced(
+                IndependentNonReplacedContents::Table(_)
+            )
+        );
         sizing::outer_inline(
             self.style(),
             containing_block,
             auto_minimum,
             auto_block_size_stretches_to_containing_block,
+            is_table,
             |padding_border_sums| self.preferred_aspect_ratio(padding_border_sums),
             |constraint_space| self.inline_content_sizes(layout_context, constraint_space),
         )
diff --git a/components/layout_2020/sizing.rs b/components/layout_2020/sizing.rs
index 1e8fe74d6e6..49c9c6aedee 100644
--- a/components/layout_2020/sizing.rs
+++ b/components/layout_2020/sizing.rs
@@ -114,6 +114,7 @@ pub(crate) fn outer_inline(
     containing_block: &IndefiniteContainingBlock,
     auto_minimum: &LogicalVec2<Au>,
     auto_block_size_stretches_to_containing_block: bool,
+    is_table: bool,
     get_preferred_aspect_ratio: impl FnOnce(&LogicalVec2<Au>) -> Option<AspectRatio>,
     get_content_size: impl FnOnce(&ConstraintSpace) -> InlineContentSizesResult,
 ) -> InlineContentSizesResult {
@@ -175,10 +176,12 @@ pub(crate) fn outer_inline(
     let (preferred_min_content, preferred_max_content, preferred_depends_on_block_constraints) =
         resolve_non_initial(content_box_sizes.inline.preferred)
             .unwrap_or_else(|| resolve_non_initial(Size::FitContent).unwrap());
-    let (min_min_content, min_max_content, min_depends_on_block_constraints) = resolve_non_initial(
-        content_box_sizes.inline.min,
-    )
-    .unwrap_or((auto_minimum.inline, auto_minimum.inline, false));
+    let (mut min_min_content, mut min_max_content, mut min_depends_on_block_constraints) =
+        resolve_non_initial(content_box_sizes.inline.min).unwrap_or((
+            auto_minimum.inline,
+            auto_minimum.inline,
+            false,
+        ));
     let (max_min_content, max_max_content, max_depends_on_block_constraints) =
         resolve_non_initial(content_box_sizes.inline.max)
             .map(|(min_content, max_content, depends_on_block_constraints)| {
@@ -189,6 +192,15 @@ pub(crate) fn outer_inline(
                 )
             })
             .unwrap_or_default();
+
+    // Regardless of their sizing properties, tables are always forced to be at least
+    // as big as their min-content size, so floor the minimums.
+    if is_table {
+        min_min_content.max_assign(content_size.sizes.min_content);
+        min_max_content.max_assign(content_size.sizes.min_content);
+        min_depends_on_block_constraints |= content_size.depends_on_block_constraints;
+    }
+
     InlineContentSizesResult {
         sizes: ContentSizes {
             min_content: preferred_min_content