Avoid recomputing inline_content_sizes() when not needed (#33806)

The result of `inline_content_sizes()` may depend on the block size of
the containing block, so we were always recomputing in case we got
a different block size.

However, if no content has a vertical percentage or stretches vertically,
then we don't need to recompute: the result will be the same anyways.

Signed-off-by: Oriol Brufau <obrufau@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>

components/layout_2020/positioned.rs

@@ -587,6 +587,7 @@ impl HoistedAbsolutelyPositionedBox {
                                 );
                         non_replaced
                             .inline_content_sizes(layout_context, &containing_block_for_children)
+                            .sizes
                             .shrink_to_fit(available_size)
                     });