Allow creating a ContentSizes from Au (#33208)

No change in behavior, it just simplies some code a little bit.

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

components/layout_2020/flexbox/layout.rs

@@ -1940,20 +1940,16 @@ impl FlexItemBox {
                 .outer_inline_content_sizes(layout_context, container_writing_mode, || {
                     automatic_min_size
                 }),
-            FlexAxis::Column => {
+            FlexAxis::Column => self
-                let size = self.layout_for_block_content_size(
+                .layout_for_block_content_size(
                     flex_context_getter(),
                     &pbm,
                     content_box_size,
                     content_min_size_no_auto,
                     content_max_size,
                     IntrinsicSizingMode::Contribution,
-                );
+                )
-                ContentSizes {
+                .into(),
-                    min_content: size,
-                    max_content: size,
-                }
-            },
         };
 
         let content_box_size = flex_axis.vec2_to_flex_relative(content_box_size);

components/layout_2020/replaced.rs

@@ -255,14 +255,10 @@ impl ReplacedContent {
         // FIXME: min/max-content of replaced elements is not defined in
         // https://dbaron.org/css/intrinsic/
         // This seems sensible?
-        let inline = self
+        self.flow_relative_intrinsic_size(style)
-            .flow_relative_intrinsic_size(style)
             .inline
-            .unwrap_or(Au::zero());
+            .unwrap_or(Au::zero())
-        ContentSizes {
+            .into()
-            min_content: inline,
-            max_content: inline,
-        }
     }
 
     pub fn make_fragments(

components/layout_2020/sizing.rs

@@ -68,10 +68,7 @@ impl ContentSizes {
 
 impl Zero for ContentSizes {
     fn zero() -> Self {
-        Self {
+        Au::zero().into()
-            min_content: Au::zero(),
-            max_content: Au::zero(),
-        }
     }
 
     fn is_zero(&self) -> bool {
@@ -103,6 +100,15 @@ impl ContentSizes {
     }
 }
 
+impl From<Au> for ContentSizes {
+    fn from(size: Au) -> Self {
+        Self {
+            min_content: size,
+            max_content: size,
+        }
+    }
+}
+
 pub(crate) fn outer_inline(
     style: &ComputedValues,
     containing_block_writing_mode: WritingMode,
@@ -159,10 +165,7 @@ pub(crate) fn outer_inline(
                 BoxSizing::ContentBox => clamped + pb_lengths,
                 BoxSizing::BorderBox => clamped,
             };
-            ContentSizes {
+            border_box_size.into()
-                min_content: border_box_size,
-                max_content: border_box_size,
-            }
         },
         None => get_content_size().map(|content_box_size| {
             match box_sizing {

components/layout_2020/table/layout.rs

@@ -248,10 +248,7 @@ impl<'a> TableLayout<'a> {
                 // These sizes are incorporated after the first row layout pass, when the block size
                 // of the layout is known.
                 let block_measure = CellOrTrackMeasure {
-                    content_sizes: ContentSizes {
+                    content_sizes: size.block.into(),
-                        min_content: size.block,
-                        max_content: size.block,
-                    },
                     percentage: percentage_contribution.block,
                 };
 
@@ -1204,14 +1201,10 @@ impl<'a> TableLayout<'a> {
                     continue;
                 };
 
-                let content_size_from_layout = ContentSizes {
-                    min_content: layout.layout.content_block_size,
-                    max_content: layout.layout.content_block_size,
-                };
                 self.cell_measures[row_index][column_index]
                     .block
                     .content_sizes
-                    .max_assign(content_size_from_layout);
+                    .max_assign(layout.layout.content_block_size.into());
             }
         }
     }
@@ -2524,10 +2517,7 @@ impl Table {
             get_size_percentage_contribution_from_style(&row.style, writing_mode);
 
         CellOrTrackMeasure {
-            content_sizes: ContentSizes {
+            content_sizes: size.into(),
-                min_content: size,
-                max_content: size,
-            },
             percentage: percentage_contribution.block,
         }
     }