Make sure to cache inline_content_sizes() (#34586)

The refactoring in 264c0f972f stopped
caching the `inline_content_sizes()` calls from:
- `FlexItemBox::layout_for_block_content_size()`
- `IndependentFormattingContext::layout_float_or_atomic_inline()`
- `TaffyContainerContext::compute_child_layout()`

Also, the call from `OutsideMarker::layout()` was never cached.

This patch caches all of them.

It's not clear at all which `inline_content_sizes()` are cached and
which aren't, so I plan to improve the situation in a follow-up.

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

components/layout_2020/flexbox/layout.rs

@@ -2799,7 +2799,7 @@ impl FlexItemBox {
                                 style.writing_mode,
                                 non_replaced.preferred_aspect_ratio(),
                             );
-                            non_replaced
+                            self.independent_formatting_context
                                 .inline_content_sizes(
                                     flex_context.layout_context,
                                     &constraint_space,